Heat stroke is no joke. Decades ago as a teen in a hiking summer camp, we had one group member 17 years of age collapse on an exposed ridge because he didn’t want to drink water. He was somewhere between exhaustion and stoke. He had to be tended for a few hours until he was cooled and rehydrated. It wrecked our ability to reach the night’s campsite.
I grew up outside of Tucson Arizona on a ranch. Summer heat can reach 118 degrees. There are basic rules to follow. There you learn to drink every time your mind thinks about water. You don’t wait for your body to tell you are thirsty because that is too late. The second thing you learn is to stay covered- wear clothes to protect you from the sun. Your perspiration will collect in the fabric and cool your body. And the third thing is to avoid drinks with alcohol. Alcohol pulls the liquid out of your body.
The clothes absorb the bodily sweat and cools the body? Never have I heard that but find it fascinating. Thinking about it, the clothes do dry fast enough on the body - it's not like they remain wet causing the body to become cold, (even in the heat we don't want a cold body), and sticky. I will never think the same about sweating up a storm, again 😂 Thank you
@@lizziesangi1602 You never noticed that desert-faring people (i.e., people in the middle east) wear garbs that cover their entire bodies, in spite of the heat?
If you find someone suffering from heat, you must become proactive to cool them down. Throw them in a shower, get ice on them, anything to cool them! They can't think.
Good advice! They will recover from getting wet, but may not recover from heat stroke. As you say, people getting close to the edge will not think straight. Before I retired from an Arizona electric company a line crew noticed three young adults walking across a field in Phoenix... one of them was stumbling noticeably. The one who was stumbling refused all help until a lineman offered him a couple of bucks to drink a bottle of water. After he drank the first one (and the linemen had set up portable shade) he accepted two more. By then he was alert and able to see to his own needs. I have no doubt he would have come to tragedy in a few minutes without their intervention.
When I'm out doing deliverys and the heat catches up to me I try to hurry home, I don't have a air conditioner, sometimes feel like almost dizzy not thinking right and I'm having anxiety about the heat so I have ice water that I'm drinking and pouring on my neck , face legs arms , I also have a large thermos of ice and extra water and I'm trying to hurry back home
I freeze a 16oz/500ml bottle of water (or larger) and then hold it between my thighs while driving. It cools the femoral arteries directly. Make sure you're wearing pants, or you'll get frostbite! One or two layers of dish towel will work as well as jeans.
@ i rivas Two days ago, at Walmart there were Air Conditioners for $55 and small units I'm not familiar with for $44. PLEASE, get yourself an Air Conditioner. It's not worth it. My AC broke earlier this summer and it was like 100° in one room. You can die. With energy savers, you being out all day, you CAN effectively keep the monthly electric down. Please, get yourself an AC, you deserve it! Why don't you deserve an Air Conditioner? There's an heat advisory where I live this week - 95 - 105°, 90 - 100°, that's not real feel. The heat is no joke, as you're experiencing! Please, get yourself an AC ❤
This is a huge problem in Australia also. With our summer temperatures sometimes reaching past 40ºC (104ºF) during the day. Some of the worst days I've experienced have actually reached over 120ºF; these are definitely not the conditions you want to be outside in.
Very good info overall. I'd add that it doesn't have to be an "ice" bath. Short answer: A bath of any water or a shower of any water will generally offer considerable improvement. Usually simple "cold" water, even if it is 35C/95F will do a lot to improve conditions. Water conducts heat extremely well and doesn't heat up very much when doing so. Also, when water evaporates (both coming out of the shower head as well as off of you) it cools a bit further, giving you an even lower temperature to work with. It is also far less of a shock to the body if you can use gentler temperatures. Obviously, water that is warmer than the patient will do little to help, though it can be applied to give evaporative cooling (ie sponge baths. If doing this, use a fan if possible to aid evaporation..
Dr. Hansen, DR. HANSEN, did advise of all that. And your medical training to try and come off like you know more and to give direction to a DR's video is?
One summer job I had the worst job of my life, assorting hangers in a Korvettes' warehouse. We stood in front of a table and assorted different sized hangers for 8 hours. There were 2 fans blowing on the workers, (women). I got heat prostration and was out for two weeks. It was bad. We had no AC at home, was in bed for two weeks and that probably could have been averted had I drank water. But this was in 1974 and sadly and unfortunately drinking water was not promoted as it is today. Thanks, DR HANSEN Shared!
One of the wicked thing about the Canyon is that temperatures at the top can be near 80F while temperatures a mile down can approach 120F. I think the relatively low rate of heat emergencies is that most people who decide to hike the Canyon (it's a round trip, after all) are experienced.
Is it just me, or is excessive use of air conditioning more common now compared to when I was a child in the 1970s and 1980s? So many buildings are kept so cold in summer that I have to put on a light jacket while inside. There's a defacto dress code that's at odds with the weather outside. I can't help but think that air conditioning abuse INCREASES the risk of heatstroke by reducing adaptation to the heat. Admittedly, 100-degree heat is potentially dangerous for everyone. However, it seems to me that the people who keep their thermostats at 72 degrees or less during air conditioning season are at more risk because they have no adaptation to the heat. 100 degrees to someone who's used to 72 is like 108 degrees to someone who's used to 80 degrees.
Jason Hsu, what would be the ideal AC setting? I have an visitor who thinks I need to have my AC at 75 degrees as the highest, and 69 as the lowest. Since she's just visiting and doesn't pay the bills, we keep it at 78 downstairs and 77 upstairs. I'm in Texas where we're still experiencing 3 digit temps.
@@pualenaisz4403 I live in the Twin Cities, MN, and my idea of room temperature during the height of air conditioning season is 80 degrees. So I'm surprised that your idea of room temperature isn't more like 82 to 85 degrees. (Also, I only use the air conditioning in the evening and at night and use a timer on the window unit I rely on.) Given that I'm in summer mode, 69 degrees would be bone chilling to me. I'd definitely need a jacket at that temperature. Where is this visitor from? Somewhere north of the Arctic Circle? 100-degree heat is ideal weather for watching movies featuring lots of snow and ice. So if you've been meaning to watch _Dr. Zhivago_, _Frozen_, _New In Town_, or _March of the Penguins_, now is the time to do so.
@ Jason Hsu, My visitor lives here, but I refuse to turn AC down even a smidgen. We had it at 80 when it went out. So for the " elderly " that's not feasible. Remember, in South, we don't experience much cold temps, except for a few record cold fronts. We are complying with local public service to keep it at levels they recommend. TY , we're 💯 good here!
@@pualenaisz4403 Wow, it sounds like your home is extremely well shaded and insulated if the indoor temperature topped out at only 80 degrees when the air conditioning broke. I would have expected the indoor temperature to climb at least into the upper 80s without the aid of air conditioning. I'd expect people in Texas to be well-adapted to the heat and have a level of heat tolerance that's superior to mine. Admittedly, I'm skinnier than most of the population, but my idea of room temperature in winter is down in the mid/upper 50s. (You can bet I'm wearing a sweater and long johns in deep winter.) I'm enough of a couch potato as it is in winter. If I insisted on a 72-degree indoor temperature in winter, I'd have difficulty adapting to the cold, and that would make the outdoor environment even more hostile. Having an aversion to the great outdoors can only make it more difficult to get enough exercise. I need more exercise during the warmer months to compensate for my sedentary winter lifestyle. How can your human polar bear visitor stand to live in Texas? It sounds like he/she cannot spend more than a few minutes outside even in normal summer weather. How can he/she ever go for a walk, visit an amusement park, go to an outdoor concert, or go to a summer festival?
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It isn’t only the generalized use and abuse of AC. It has also to do with poor dietary choices (particularly, high consumption of salt/sodium and low consumption of potassium), avoidance of prolonged physical activity at warm temperatures, low aerobic capacity, overweight bodies, etc.
I've found a very effective way to keep heatstroke at bay. For about 10 years now, I've used a water-soaked mid-sized terry cloth towel wrapped around my neck and/or head. The constant evaporation effect makes you head and neck feel wonderful. The cooling effect appears to cool my blood. I stop sweating as much overall and get to carry way less water while doing activities like working out outside in 100+ degree weather (which I do 😊). Before I started doing this, I did have times when I did get dangerously close to getting heat stroke. After wrapping my head and neck in a soaked towel, I've not come close to it under very extreme temperatures.
I soaked my riding shirt before I left work for the six mile ride home in Phoenix. The front was dry within a mile and the back within another mile. but every bit helps.
@@flagmichael Next time, try a terry cloth towel. One that's small enough to just wrap around your neck or head. It takes longer for all the water to evaporate.
Heat exhaustion happens when the body is overheated, usually with a fever of up to 104 degrees Fahrenheit. One of the differences in symptoms between heat exhaustion and heatstroke is sweat; heat exhaustion is characterized by heavy sweating, while those suffering from heatstroke experience decreased sweating
Già....il super caldo c' è sempre stato, ma è la durata che è diversa... Con il "siero magico" nelle vene c'è chi sente un vero "fuoco" interno, come abbiamo potuto sapere, forse ora ulteriormente aggravato da queste temperature record....Cordiali saluti dall' Italia 👋🏻👋🏻🙏🙏💖💖
I just had a situation with my 4 year old grandson. We went to the NASCAR race at Pocono Raceway a couple of weeks ago. I brought a lot of ice water and frozen Gatorade with us because I knew it was going to be extremely hot there. I also brought a thermometer. It was 100.8° in our seats. My grandson got quiet and wanted to go home. I noticed that his face was red and he wasn't sweating. I immediately started pouring the ice water on him and after a few minutes he was back to his normal self and his face wasn't red anymore.
During my visit to Florida from Canada in May 2023 I spent a day at Disney World with my family. We had a lot of water, and I wore a hat most of the time. A few hours in, I started to notice confusion, dizziness, fatigue, headache and dehydration. We went into a ride shortly after that was indoors and well air conditioned. I felt back to normal after that. I’m thanking God I didn’t get heat stroke, it was very scary because you have no warning or control over it. What I would do different for anything wondering is bring electrolytes, cooking fans/towels, wear loose, light clothes and go inside excessively. My Apple Watch was also my best friend because during my second visit I was able to monitor my heart rate.
what a relief! Getting back to learning things. Had all these symptoms today living in southern peloponnese. I need to take diuretics because of a previous stroke and I am a coffee lover. Difficult equation with far too many variables. Solution. jumping in the sea with a telephone in a waterproof case 😂. Did the trick though. Thanks for dropping those Med cooking atrocities. Can send you a bottle of my olive oil to see what is all about. Keep it coming.
Kick the love of coffee my friend. If you're living there full time, the heat alone for your condition isn't gonna be a good thing. Why add to the risks. There are other things you can drink similar to coffee that don't have the caffeine, Chag. It's a fungus that grown on trees. Much healthier than coffee is and same kind of enjoyment. Hope you have health insurance there.
Exposure to wet-bulb temperatures of 35 °C or higher over 3-4 hours can result in multiple organ failures and death. The wet-bulb temperature is the one under a wet fabric, so it includes any heat removed by sweating or any form of evaporation. Those temperature are now reached in certain parts of the world from time to time and leaving the cooled areas is a serious health risk.
No joke, I remember I almost died in Bryce canyon trailing for 7 miles with only 16 oz of water up and down elevations of 8,000 feet. I was very lucky. Just in that hike alone, I lost 7 lbs of water weight. It was very hot, like 104 degrees that day. Travel with plenty of water, don't cut corners to pack light, you never know what might happen and you need that extra water.
whew! even when u look tired you're fine. I just finished cutting a half acre with a push mower in 85° humid morning heat, im 54 in great shape on modified keto. I worried a little but I sweat alot, I drink ice water, im taking my time, and im breathing normally. i also started at 8am and was done by 10am. thanks for this info doc.
Thanks for discussing heat stroke… please consider a video all about salt. Iodized table salt vs non iodized … how much iodine do we need daily … I heard Celtic salt is better as well as pink hymalayian salts … then the 2300 mg of salt a day limit topic … how can it be achieved if at all? and lastly … how does our salt consumption vs water intake both alone and with our food choices effect the body s ability to avoid heat stroke. one more thing … sweating … some people do not sweat … still another variable … ps there are lots of no salt added products out there now which I am finding helpful…
Plain old sea salt works fine, or Redmond Real Salt. Some of the pink 'Himalayan' salt is mined using (basically) forced labor, so I won't buy it or support it. One benefit of sea salts is it's a mix of metallic salts that are nearly identical to your blood concentrations, as opposed to sodium chloride 'table salt'. Most people get too much sodium and not nearly enough potassium.
let's stack up the number of young people dying from heatstroke to those that just happen to, well, drop dead, which seems to be happening an awful lot lately. Five or six young doctors died in Canada in July, not exactly the hottest place on earth. Something else is going on, but you surely won't hear about it here.
The 5 to 6 doctors were from the same healthcare. They may have had a bad lot. I read it was the 4th "you know what" to get ready for the next pandemic. What makes me sad is the number of babies that are being born without limbs.
Heat related illness is far more likely today than in the not so distant past, particularly when most of our activities take place during the peak heat times of the day. We may need to rethink our work schedules for health and environmental reasons. Running AC and vehicles during peak heat hours only exacerbates the problem.
Yup it does. And there are other ways we can use that also cool the indoor air just as effectively, without the need to use aircon or electricity. They take more to set up but once installed, they can work indefinitely in a natural way. People living in desserts have used environmental cooling for centuries to great effect. No reason why the rest of the world can't do the same.
@@comedianmattrossey Adobe makes an excellent insulator against heat and cold. Middle Eastern countries have homes hundreds of years old. In the US, the Pueblo and Navaho tribes still live in adobe homes. Adobe is durable and is good for the environment.
@@denismeans2910 That would be one of the many things I was thinking about when writing the reply. I didn't honestly say any in particular as there are so many different ways to accomplish cooling spaces down without the use of electricty and by doing it environmentally. I totally agree with you on adobe built homes. They are even good in cold climates for retaining heat in. I've got a friend who built and owns an earthship home and he has wind tunnels that cause a constant movement of warm air being expelled out of his home to the outside and it draws cool air in from the dark side of the house. I've been there and it works really well. He doesn't have to worry about heating the place so much but on the cold nights in the arid area he lives in the Nevada desert, he just closes the vents with a hand crank and lights the fireplace and the whole house is evenly warmed. He's got it down to a science.
@@denismeans2910 Yup it does. I believe I made a comment that you may have quoted part of what I said in this comment. And yes I agree about the practical use of Adobe for homes. Adobe is also used in Africa, Australia, and a number of other countries, by Indigenous People for 1000's of years. There have even been Adobe structures unearthed during archeological digs of early human homes. Earth Ship homes most times are partially made of adobe. They're countless other old world building methods that are still used currently by people in different countries. In the Philippines people still live in Nipa Huts in areas that are far from cities and are more rural/country areas. Thailand, Vietnam, and the Philippines, again in the more rural areas, use bamboo for the entire building of full houses, including the furniture. They even use it for plumbing fresh water from a river to a bamboo hut.
in Nevada we do have air condition but we also have swamp cooler that work great. I think when I first moved to Nevada I think I ended up getting heat exhaustion or close to it but made it home quickly enough and stayed by the swamp cooler. but now I have cooling towel to help me outside for work.
On Wednesday I almost collapsed.. I went for a ride on my bicycle suddenly I started sweeting a lot with vomiting symptoms I got scared.. I stopped and talked refugee on one tree shape. I knew it.. Heat stroke..! Thanks Dr.. Blessings to you
I ran Cross Country in Las Vegas. I was loosing 8 to 10-pounds of water every afternoon. A friend from the team was taking exercise physiology. I ended up running on treadmills with probes all over me, so the folks in the research lab could observe what was happening.
We hike all the time and I’ve always had a hard time with temperature regulation because I sweat very little. I’ve learned to wear a hat and take frozen bottle water with me. I put it on my head and neck to help. My husband watches my face if it turns blood red which it does all the time. He makes me rest. I can’t tell when I’m overheated.
Very useful information given that when I was studying climate change 12 years ago, it was expected that it would take several decades for the planet to heat up by an additional half a degree. Instead, this has happened in only ten years.
ARMY assigned me 2 Kuwaiti officers to my platoon. August in Washington DC. They wore flimsy white head gear that covered top of head and back of the neck. Absorbent under layer over flowing white sheets.
My postal career ended due to heat exhaustion. My feet and hands went numb and I couldn't move. A medical student found me and called for help stating it seemed I was suffering from Paresthesia. Got fluids in the ER and Dr told me my electrolytes were off. Now anytime I'm out in the heat and if I haven't drank enough fluids, I get nauseous, my hands start tingling and cramping, and I just know my feet will go numb next. The experience also exacerbated my nightime restless legs. It's been 6 yrs. You know how hard it is to stay out of the heat in Southern CA? Lol
I am now work for a Federal Agency which fights wildland fires. Rahbdo is a serious issue with several people getting it every season. I keep trying to get them to ban energy drinks, which are high in caffeine and other stimulants, which in general are diuretics. They keep supplying them in fire camp.
@@stanj7223 Mid 70s, when I was running in College, there was a “sports drink”, marketed as “Gluconade ERG”. It was an electrolyte replaced with glucose, which was lemon flavored, glucose sweetened, and and contained a proportioned blend of electrolytes. The first time I came across it, was at the finish line of an AAU, half marathon. I finished and they had tables of 8-oz glasses set up. It was fall in Vegas, but still 90-degrees out, and I was dehydrated. I was half way through the fourth glass, when it suddenly tasted like lemonade with salt in it, and I made a sour face. The guy from the company laughed and told me that it was a design feature. When your fluids and electrolytes came back up, it suddenly tasted bad. That way you didn’t drink too much and flounder. It was only on the market for a year or two. Gatorade was much cheaper, and tasted better.
You need to acclimate yourself to heat, it takes a few weeks. Also, I read that many people who were force-feeding themselves water, trying to protect against heat stroke, actually make themselves more susceptible.
Acclimatization is much more mental than physical. The requirement of water in hot climates is everything. The only caveat about consuming lots of water is to include electrolytes; without it we invite heat exhaustion (very different from heat stroke) but if we fail to drink the water we invite heat stroke. Drink the water; the outcome of heat exhaustion is almost always a lot better than the outcome of heat stroke. (Lived, worked, and cycled in Phoenix for 27 years.)
@@flagmichael I beleive your body actually reacts differently to heat after acclimation. I live in MD where we have 4 seasons and also did triathlons here. When summer heat comes, it hits you hard at first but after 2 or 3 weeks it's much easier to stand. There was a study (that I can't source) that looked at the number of people needing ambulances at 10k races, bike races etc. These are people like myself that are not true athletes, mostly weekend warriors. They determined that when people forced themselves to over drink in preparation for the event, they were more likely to need medical intervention (probably heat exhaustion as you say) than those that drank when they felt thirsty.
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A high-sodium diet impairs heat acclimation. Heat acclimation has nothing of “mental” but rather is driven by adaptive physiological changes such as the hypertrophy of the eccrine sweat glands, an enhanced capacity to sweat, an increase in the re-uptake of sodium (aldosterone-mediated) and other ions from the filtrate in sweat glands and kidneys, etc. I’ve lived without AC in a warm climate with high relative humidity (on the Mediterranean coast) for almost five decades.
Drink lots of water before you need it, and include some electrolytes (I learned that the hard way - 3 quarts of water but no pee, and I was getting more and more fatigued.) There is no substitute. When I lived in Phoenix a cyclist suffered heat stroke a couple blocks from my house. He was in the shade of a tree when EMS showed up; they were beginning to get his story when his temperature spiked and he died in front of them. Be aware that a lot of incipient victims will resist suggestions that will save their lives. You can't go against their wishes when it comes to their body or actions but you certainly can and should call 911 to get the professionals involved.
whow... just at the end some warning about Water poisoning. distrust everybody telling you to drink 2 liter of water without also telling you to refill on electrolytes / vitamins etc..
Hello if hypo Nigeria consist of other symptoms of feeling nausea , maybe you have found out why I feel the way I do when I drink water...... Thank you for the video
According to modeling, the increase in temperature due to climate change is only ~2C over the next 50 years. So, don't blame this on climate change, but rather weather.
Most land is under the influence of oceans. In North America the West is dominated by El Niño, a weather system driven by South Pacific currents. Here in Arizona it is King. While people were blaming the dry weather on climate change El Niño brought enormous amounts of water from the Sea of Cortez last week and dumped almost ten inches of rain on forest burn scars north of Flagstaff, causing massive mud flows. In East Flagstaff we barely had three inches of rain that week.
Very important Topic , Child died in Canada from heat stroke, child among lot of people, of a gathering, even though the child was in a stroller, hydrating, wear hat , seek shade , periodically, for me know the signs of heat stroke
Getting _really_ sick from heat is usually heat exhaustion - flushed face and serious fatigue. Getting sick from heat can be a number of things, including loss of electrolytes through sweating. Heat stroke is a medical emergency but any debilitating condition should be checked out by professionals. Heart attacks can hide under cover of heat exhaustion.
Don't forget ELECTROLYTES Doctor. Mike, too much water can flush the blood from important electrolytes, such as Potassium and Sodium, K+ They help with hydration to..
@@nosuchthing8, have you heard of the Badwater Ultramarathon, a 135-mile race that takes place in mid-July, from the Badwater Basin in Death Valley to the trailhead to Mount Whitney?
@@valeriesmith477 it was not the first time it happened, and it wont be the last. Much more extreme weather happened in the British Isles in the 1500s. People don't like to hear about history.
Heat stroke is no joke. Decades ago as a teen in a hiking summer camp, we had one group member 17 years of age collapse on an exposed ridge because he didn’t want to drink water. He was somewhere between exhaustion and stoke. He had to be tended for a few hours until he was cooled and rehydrated. It wrecked our ability to reach the night’s campsite.
Heat exhaustion can generally be treated.
I grew up outside of Tucson Arizona on a ranch. Summer heat can reach 118 degrees. There are basic rules to follow. There you learn to drink every time your mind thinks about water. You don’t wait for your body to tell you are thirsty because that is too late. The second thing you learn is to stay covered- wear clothes to protect you from the sun. Your perspiration will collect in the fabric and cool your body. And the third thing is to avoid drinks with alcohol. Alcohol pulls the liquid out of your body.
Great point - if you think about water you need it.
The clothes absorb the bodily sweat and cools the body?
Never have I heard that but find it fascinating. Thinking about it, the clothes do dry fast enough on the body - it's not like they remain wet causing the body to become cold, (even in the heat we don't want a cold body), and sticky. I will never think the same about sweating up a storm, again 😂
Thank you
@@lizziesangi1602 You never noticed that desert-faring people (i.e., people in the middle east) wear garbs that cover their entire bodies, in spite of the heat?
Never drive anywhere without at least a gallon of potable water, preferably more. Learned that one the hard way....
If you find someone suffering from heat, you must become proactive to cool them down. Throw them in a shower, get ice on them, anything to cool them! They can't think.
Good advice! They will recover from getting wet, but may not recover from heat stroke. As you say, people getting close to the edge will not think straight. Before I retired from an Arizona electric company a line crew noticed three young adults walking across a field in Phoenix... one of them was stumbling noticeably. The one who was stumbling refused all help until a lineman offered him a couple of bucks to drink a bottle of water. After he drank the first one (and the linemen had set up portable shade) he accepted two more. By then he was alert and able to see to his own needs. I have no doubt he would have come to tragedy in a few minutes without their intervention.
@@flagmichael Good on your crewman, he deserves to be honored in some way for what he did. He probably saved the guys life
When I'm out doing deliverys and the heat catches up to me I try to hurry home, I don't have a air conditioner, sometimes feel like almost dizzy not thinking right and I'm having anxiety about the heat so I have ice water that I'm drinking and pouring on my neck , face legs arms , I also have a large thermos of ice and extra water and I'm trying to hurry back home
A window unit at walmart can be bought for less than 150$ also, fire departments sometimes loan them. Ask around.
Have a cool shower when you get home too.
I freeze a 16oz/500ml bottle of water (or larger) and then hold it between my thighs while driving. It cools the femoral arteries directly. Make sure you're wearing pants, or you'll get frostbite! One or two layers of dish towel will work as well as jeans.
@ i rivas
Two days ago, at Walmart there were Air Conditioners for $55 and small units I'm not familiar with for $44. PLEASE, get yourself an Air Conditioner. It's not worth it. My AC broke earlier this summer and it was like 100° in one room. You can die. With energy savers, you being out all day, you CAN effectively keep the monthly electric down. Please, get yourself an AC, you deserve it! Why don't you deserve an Air Conditioner? There's an heat advisory where I live this week - 95 - 105°, 90 - 100°, that's not real feel. The heat is no joke, as you're experiencing!
Please, get yourself an AC ❤
Thank you Dr. Hansen, this is a nice topic for the recently heat waves attached the globe. We have to aware of the heat stroke.
This is a huge problem in Australia also. With our summer temperatures sometimes reaching past 40ºC (104ºF) during the day. Some of the worst days I've experienced have actually reached over 120ºF; these are definitely not the conditions you want to be outside in.
Thank you Doctor Mike, this is a scary problem all of us have to deal with!
Very good info overall. I'd add that it doesn't have to be an "ice" bath. Short answer: A bath of any water or a shower of any water will generally offer considerable improvement.
Usually simple "cold" water, even if it is 35C/95F will do a lot to improve conditions. Water conducts heat extremely well and doesn't heat up very much when doing so. Also, when water evaporates (both coming out of the shower head as well as off of you) it cools a bit further, giving you an even lower temperature to work with. It is also far less of a shock to the body if you can use gentler temperatures. Obviously, water that is warmer than the patient will do little to help, though it can be applied to give evaporative cooling (ie sponge baths. If doing this, use a fan if possible to aid evaporation..
Dr. Hansen, DR. HANSEN, did advise of all that. And your medical training to try and come off like you know more and to give direction to a DR's video is?
One summer job I had the worst job of my life, assorting hangers in a Korvettes' warehouse. We stood in front of a table and assorted different sized hangers for 8 hours. There were 2 fans blowing on the workers, (women).
I got heat prostration and was out for two weeks. It was bad. We had no AC at home, was in bed for two weeks and that probably could have been averted had I drank water. But this was in 1974 and sadly and unfortunately drinking water was not promoted as it is today.
Thanks, DR HANSEN
Shared!
Your videos have achieved a new level of excellence. They are entirely informative and to-the-point. You've hit your stride!
The very reasons I subscribed to Dr Hansen! Concise, to the point, no BS.
@@lizziesangi1602 Same
Grand Canyon is different kind a heat , true agree with you Dr, heat stroke can be fatal
One of the wicked thing about the Canyon is that temperatures at the top can be near 80F while temperatures a mile down can approach 120F. I think the relatively low rate of heat emergencies is that most people who decide to hike the Canyon (it's a round trip, after all) are experienced.
@@flagmichael agree air sinks at lower elevation ,as the air is compressed, becomes warmer,Thank you 👍
Is it just me, or is excessive use of air conditioning more common now compared to when I was a child in the 1970s and 1980s? So many buildings are kept so cold in summer that I have to put on a light jacket while inside. There's a defacto dress code that's at odds with the weather outside.
I can't help but think that air conditioning abuse INCREASES the risk of heatstroke by reducing adaptation to the heat. Admittedly, 100-degree heat is potentially dangerous for everyone. However, it seems to me that the people who keep their thermostats at 72 degrees or less during air conditioning season are at more risk because they have no adaptation to the heat. 100 degrees to someone who's used to 72 is like 108 degrees to someone who's used to 80 degrees.
Jason Hsu, what would be the ideal AC setting? I have an visitor who thinks I need to have my AC at 75 degrees as the highest, and 69 as the lowest. Since she's just visiting and doesn't pay the bills, we keep it at 78 downstairs and 77 upstairs. I'm in Texas where we're still experiencing 3 digit temps.
@@pualenaisz4403 I live in the Twin Cities, MN, and my idea of room temperature during the height of air conditioning season is 80 degrees. So I'm surprised that your idea of room temperature isn't more like 82 to 85 degrees. (Also, I only use the air conditioning in the evening and at night and use a timer on the window unit I rely on.)
Given that I'm in summer mode, 69 degrees would be bone chilling to me. I'd definitely need a jacket at that temperature. Where is this visitor from? Somewhere north of the Arctic Circle?
100-degree heat is ideal weather for watching movies featuring lots of snow and ice. So if you've been meaning to watch _Dr. Zhivago_, _Frozen_, _New In Town_, or _March of the Penguins_, now is the time to do so.
@ Jason Hsu, My visitor lives here, but I refuse to turn AC down even a smidgen. We had it at 80 when it went out. So for the " elderly " that's not feasible. Remember, in South, we don't experience much cold temps, except for a few record cold fronts.
We are complying with local public service to keep it at levels they recommend. TY , we're 💯 good here!
@@pualenaisz4403 Wow, it sounds like your home is extremely well shaded and insulated if the indoor temperature topped out at only 80 degrees when the air conditioning broke. I would have expected the indoor temperature to climb at least into the upper 80s without the aid of air conditioning.
I'd expect people in Texas to be well-adapted to the heat and have a level of heat tolerance that's superior to mine. Admittedly, I'm skinnier than most of the population, but my idea of room temperature in winter is down in the mid/upper 50s. (You can bet I'm wearing a sweater and long johns in deep winter.) I'm enough of a couch potato as it is in winter. If I insisted on a 72-degree indoor temperature in winter, I'd have difficulty adapting to the cold, and that would make the outdoor environment even more hostile. Having an aversion to the great outdoors can only make it more difficult to get enough exercise. I need more exercise during the warmer months to compensate for my sedentary winter lifestyle.
How can your human polar bear visitor stand to live in Texas? It sounds like he/she cannot spend more than a few minutes outside even in normal summer weather. How can he/she ever go for a walk, visit an amusement park, go to an outdoor concert, or go to a summer festival?
It isn’t only the generalized use and abuse of AC. It has also to do with poor dietary choices (particularly, high consumption of salt/sodium and low consumption of potassium), avoidance of prolonged physical activity at warm temperatures, low aerobic capacity, overweight bodies, etc.
Great informative video , thank you .
Sympathies to the families of the young people who succumbed ..😢
Global warming Dr!
Get your jabs and don't ask questions
I've found a very effective way to keep heatstroke at bay. For about 10 years now, I've used a water-soaked mid-sized terry cloth towel wrapped around my neck and/or head. The constant evaporation effect makes you head and neck feel wonderful. The cooling effect appears to cool my blood. I stop sweating as much overall and get to carry way less water while doing activities like working out outside in 100+ degree weather (which I do 😊). Before I started doing this, I did have times when I did get dangerously close to getting heat stroke. After wrapping my head and neck in a soaked towel, I've not come close to it under very extreme temperatures.
I soaked my riding shirt before I left work for the six mile ride home in Phoenix. The front was dry within a mile and the back within another mile. but every bit helps.
@@flagmichael Next time, try a terry cloth towel. One that's small enough to just wrap around your neck or head. It takes longer for all the water to evaporate.
Heat exhaustion happens when the body is overheated, usually with a fever of up to 104 degrees Fahrenheit. One of the differences in symptoms between heat exhaustion and heatstroke is sweat; heat exhaustion is characterized by heavy sweating, while those suffering from heatstroke experience decreased sweating
Heat "prostration" - was what I had and there was little to no sweating and yes, fever. Two weeks were spent in bed. It was bad.
Già....il super caldo c' è sempre stato, ma è la durata che è diversa... Con il "siero magico" nelle vene c'è chi sente un vero "fuoco" interno, come abbiamo potuto sapere, forse ora ulteriormente aggravato da queste temperature record....Cordiali saluti dall' Italia 👋🏻👋🏻🙏🙏💖💖
Thanks, Dr. Hansen, for another spot on informative video. You are appreciated! !☮️
I just had a situation with my 4 year old grandson. We went to the NASCAR race at Pocono Raceway a couple of weeks ago. I brought a lot of ice water and frozen Gatorade with us because I knew it was going to be extremely hot there. I also brought a thermometer. It was 100.8° in our seats. My grandson got quiet and wanted to go home. I noticed that his face was red and he wasn't sweating. I immediately started pouring the ice water on him and after a few minutes he was back to his normal self and his face wasn't red anymore.
During my visit to Florida from Canada in May 2023 I spent a day at Disney World with my family. We had a lot of water, and I wore a hat most of the time. A few hours in, I started to notice confusion, dizziness, fatigue, headache and dehydration. We went into a ride shortly after that was indoors and well air conditioned. I felt back to normal after that. I’m thanking God I didn’t get heat stroke, it was very scary because you have no warning or control over it. What I would do different for anything wondering is bring electrolytes, cooking fans/towels, wear loose, light clothes and go inside excessively. My Apple Watch was also my best friend because during my second visit I was able to monitor my heart rate.
You are the first Doctor to address Drinking Too Much water. Thank you for that. Great Video.
Thank you for this video, it is an important one!
what a relief! Getting back to learning things.
Had all these symptoms today living in southern peloponnese. I need to take diuretics because of a previous stroke and I am a coffee lover. Difficult equation with far too many variables.
Solution. jumping in the sea with a telephone in a waterproof case 😂. Did the trick though.
Thanks for dropping those Med cooking atrocities. Can send you a bottle of my olive oil to see what is all about. Keep it coming.
Kick the love of coffee my friend. If you're living there full time, the heat alone for your condition isn't gonna be a good thing. Why add to the risks. There are other things you can drink similar to coffee that don't have the caffeine, Chag. It's a fungus that grown on trees. Much healthier than coffee is and same kind of enjoyment. Hope you have health insurance there.
thanks for your advice.
Exposure to wet-bulb temperatures of 35 °C or higher over 3-4 hours can result in multiple organ failures and death. The wet-bulb temperature is the one under a wet fabric, so it includes any heat removed by sweating or any form of evaporation. Those temperature are now reached in certain parts of the world from time to time and leaving the cooled areas is a serious health risk.
No joke, I remember I almost died in Bryce canyon trailing for 7 miles with only 16 oz of water up and down elevations of 8,000 feet. I was very lucky. Just in that hike alone, I lost 7 lbs of water weight. It was very hot, like 104 degrees that day. Travel with plenty of water, don't cut corners to pack light, you never know what might happen and you need that extra water.
Lucky indeed! You lost almost two gallons and lived to tell about it.
I carry at least 2 Liters on 7 miles or shorter.
whew! even when u look tired you're fine. I just finished cutting a half acre with a push mower in 85° humid morning heat, im 54 in great shape on modified keto. I worried a little but I sweat alot, I drink ice water, im taking my time, and im breathing normally. i also started at 8am and was done by 10am. thanks for this info doc.
Thank you. I work for a nonprofit and our Warehouse in TX is not air-conditioned & our folks are getting way to hot. Appreciate the info.
Thanks for discussing heat stroke…
please consider a video all about salt.
Iodized table salt vs non iodized …
how much iodine do we need daily …
I heard Celtic salt is better as well as pink hymalayian salts …
then the 2300 mg of salt a day limit topic … how can it be achieved if at all?
and lastly … how does our salt consumption vs water intake both alone and with our food choices effect
the body s ability to avoid heat stroke.
one more thing … sweating …
some people do not sweat … still another variable …
ps there are lots of no salt added products out there now which I am finding helpful…
Plain old sea salt works fine, or Redmond Real Salt. Some of the pink 'Himalayan' salt is mined using (basically) forced labor, so I won't buy it or support it. One benefit of sea salts is it's a mix of metallic salts that are nearly identical to your blood concentrations, as opposed to sodium chloride 'table salt'. Most people get too much sodium and not nearly enough potassium.
This goes for our ANIMALS as well. 🐕🦮🐈⬛🐩🐇🐈
Simple ..direct info 👍🏻👍🏻
Thanks sir for sharing these with us especially when our world facing uncertain climate changing.
Good video. I really don't hear about heatstroke that much, still a serious medical related condition to not want to endure.
Thank you very much! I'm diabetic and prone to dehydration.
I’m really worried I did damage to my brain, I wish this guy actually addressed the brain aspect of heat stroke more. I desire clarity
let's stack up the number of young people dying from heatstroke to those that just happen to, well, drop dead, which seems to be happening an awful lot lately. Five or six young doctors died in Canada in July, not exactly the hottest place on earth. Something else is going on, but you surely won't hear about it here.
The 5 to 6 doctors were from the same healthcare. They may have had a bad lot. I read it was the 4th "you know what" to get ready for the next pandemic. What makes me sad is the number of babies that are being born without limbs.
@@theinternetelectrician it was the heat. Ya ya. It was a vaccine ya that was it. It was cardiac arrest ya that was it.
Ah, yes, doctors are hiding a conspiracy that is killing them. Makes total sense. How deep down the rabbit hole do you have to be to belive this?
Heat related illness is far more likely today than in the not so distant past, particularly when most of our activities take place during the peak heat times of the day. We may need to rethink our work schedules for health and environmental reasons. Running AC and vehicles during peak heat hours only exacerbates the problem.
Yup it does. And there are other ways we can use that also cool the indoor air just as effectively, without the need to use aircon or electricity. They take more to set up but once installed, they can work indefinitely in a natural way. People living in desserts have used environmental cooling for centuries to great effect. No reason why the rest of the world can't do the same.
@@comedianmattrossey Adobe makes an excellent insulator against heat and cold. Middle Eastern countries have homes hundreds of years old. In the US, the Pueblo and Navaho tribes still live in adobe homes. Adobe is durable and is good for the
environment.
@@denismeans2910 That would be one of the many things I was thinking about when writing the reply. I didn't honestly say any in particular as there are so many different ways to accomplish cooling spaces down without the use of electricty and by doing it environmentally. I totally agree with you on adobe built homes. They are even good in cold climates for retaining heat in. I've got a friend who built and owns an earthship home and he has wind tunnels that cause a constant movement of warm air being expelled out of his home to the outside and it draws cool air in from the dark side of the house. I've been there and it works really well. He doesn't have to worry about heating the place so much but on the cold nights in the arid area he lives in the Nevada desert, he just closes the vents with a hand crank and lights the fireplace and the whole house is evenly warmed. He's got it down to a science.
@@denismeans2910 Yup it does. I believe I made a comment that you may have quoted part of what I said in this comment. And yes I agree about the practical use of Adobe for homes. Adobe is also used in Africa, Australia, and a number of other countries, by Indigenous People for 1000's of years. There have even been Adobe structures unearthed during archeological digs of early human homes.
Earth Ship homes most times are partially made of adobe. They're countless other old world building methods that are still used currently by people in different countries. In the Philippines people still live in Nipa Huts in areas that are far from cities and are more rural/country areas. Thailand, Vietnam, and the Philippines, again in the more rural areas, use bamboo for the entire building of full houses, including the furniture. They even use it for plumbing fresh water from a river to a bamboo hut.
in Nevada we do have air condition but we also have swamp cooler that work great. I think when I first moved to Nevada I think I ended up getting heat exhaustion or close to it but made it home quickly enough and stayed by the swamp cooler. but now I have cooling towel to help me outside for work.
How to avoid panic...??
Stop watching.
This happened to me years ago but I was drinking gator aide but that’s a Nono and water is what you need to much gator aid is not good
Some of both is good. You don't need much electrolyte addition but you do need a lot of water.
Thank you! Very informative.
Glad it was helpful!
Gee most of the country just finished heat waves, as well as Europe.
Great timing...
On Wednesday I almost collapsed..
I went for a ride on my bicycle suddenly I started sweeting a lot with vomiting symptoms I got scared..
I stopped and talked refugee on one tree shape.
I knew it..
Heat stroke..!
Thanks Dr..
Blessings to you
I ran Cross Country in Las Vegas. I was loosing 8 to 10-pounds of water every afternoon. A friend from the team was taking exercise physiology. I ended up running on treadmills with probes all over me, so the folks in the research lab could observe what was happening.
We hike all the time and I’ve always had a hard time with temperature regulation because I sweat very little. I’ve learned to wear a hat and take frozen bottle water with me. I put it on my head and neck to help. My husband watches my face if it turns blood red which it does all the time. He makes me rest. I can’t tell when I’m overheated.
Very useful information given that when I was studying climate change 12 years ago, it was expected that it would take several decades for the planet to heat up by an additional half a degree. Instead, this has happened in only ten years.
ARMY assigned me 2 Kuwaiti officers to my platoon. August in Washington DC. They wore flimsy white head gear that covered top of head and back of the neck. Absorbent under layer over flowing white sheets.
Hey Doctor Mike. When are you going to present on the dramatic increase in all cause mortality?
Thank you for sharing this Life saving information I will be more aware of this when I'm outside from now on 🙂
My postal career ended due to heat exhaustion. My feet and hands went numb and I couldn't move. A medical student found me and called for help stating it seemed I was suffering from Paresthesia. Got fluids in the ER and Dr told me my electrolytes were off.
Now anytime I'm out in the heat and if I haven't drank enough fluids, I get nauseous, my hands start tingling and cramping, and I just know my feet will go numb next.
The experience also exacerbated my nightime restless legs.
It's been 6 yrs. You know how hard it is to stay out of the heat in Southern CA? Lol
I am now work for a Federal Agency which fights wildland fires. Rahbdo is a serious issue with several people getting it every season. I keep trying to get them to ban energy drinks, which are high in caffeine and other stimulants, which in general are diuretics. They keep supplying them in fire camp.
Pedialyte is a great choice, but the 'manly' fools won't drink it. Gatorade is too strong, and it's best to cut it 50% with water.
@@stanj7223 Mid 70s, when I was running in College, there was a “sports drink”, marketed as “Gluconade ERG”. It was an electrolyte replaced with glucose, which was lemon flavored, glucose sweetened, and and contained a proportioned blend of electrolytes.
The first time I came across it, was at the finish line of an AAU, half marathon. I finished and they had tables of 8-oz glasses set up. It was fall in Vegas, but still 90-degrees out, and I was dehydrated. I was half way through the fourth glass, when it suddenly tasted like lemonade with salt in it, and I made a sour face. The guy from the company laughed and told me that it was a design feature. When your fluids and electrolytes came back up, it suddenly tasted bad. That way you didn’t drink too much and flounder. It was only on the market for a year or two. Gatorade was much cheaper, and tasted better.
Thank you so much doctor for this information it's very helpful these days 😊😊😊
Very informative information. Thank you, Dr. Hansen. ☀️💙
Thx for the tips
I bought UV shield sleeves n face shield for my day cycling trips
You need to acclimate yourself to heat, it takes a few weeks. Also, I read that many people who were force-feeding themselves water, trying to protect against heat stroke, actually make themselves more susceptible.
Acclimatization is much more mental than physical. The requirement of water in hot climates is everything. The only caveat about consuming lots of water is to include electrolytes; without it we invite heat exhaustion (very different from heat stroke) but if we fail to drink the water we invite heat stroke. Drink the water; the outcome of heat exhaustion is almost always a lot better than the outcome of heat stroke. (Lived, worked, and cycled in Phoenix for 27 years.)
@@flagmichael I beleive your body actually reacts differently to heat after acclimation. I live in MD where we have 4 seasons and also did triathlons here. When summer heat comes, it hits you hard at first but after 2 or 3 weeks it's much easier to stand.
There was a study (that I can't source) that looked at the number of people needing ambulances at 10k races, bike races etc. These are people like myself that are not true athletes, mostly weekend warriors. They determined that when people forced themselves to over drink in preparation for the event, they were more likely to need medical intervention (probably heat exhaustion as you say) than those that drank when they felt thirsty.
A high-sodium diet impairs heat acclimation. Heat acclimation has nothing of “mental” but rather is driven by adaptive physiological changes such as the hypertrophy of the eccrine sweat glands, an enhanced capacity to sweat, an increase in the re-uptake of sodium (aldosterone-mediated) and other ions from the filtrate in sweat glands and kidneys, etc.
I’ve lived without AC in a warm climate with high relative humidity (on the Mediterranean coast) for almost five decades.
Thank you Dr. Mike.
Thanks Dr. MIKE!
Very good information, thank you Dr. Mike 👍
Thanks doc! Gaterade can have a medical application, that's news...
Thank u I’m very sensitive to the heat
How many of these had the "you know what". Could the blood clot increase have something to do with it also?
What, 😲 I want to go with that was it on the news that is a shock 😭🤧
Very informative thank you…
Drink lots of water before you need it, and include some electrolytes (I learned that the hard way - 3 quarts of water but no pee, and I was getting more and more fatigued.) There is no substitute. When I lived in Phoenix a cyclist suffered heat stroke a couple blocks from my house. He was in the shade of a tree when EMS showed up; they were beginning to get his story when his temperature spiked and he died in front of them.
Be aware that a lot of incipient victims will resist suggestions that will save their lives. You can't go against their wishes when it comes to their body or actions but you certainly can and should call 911 to get the professionals involved.
whow... just at the end some warning about Water poisoning.
distrust everybody telling you to drink 2 liter of water
without also telling you to refill on electrolytes / vitamins etc..
Good vid, I survived Covid now it's heat related issues.
Great work
Hello if hypo Nigeria consist of other symptoms of feeling nausea , maybe you have found out why I feel the way I do when I drink water......
Thank you for the video
According to modeling, the increase in temperature due to climate change is only ~2C over the next 50 years. So, don't blame this on climate change, but rather weather.
Most land is under the influence of oceans. In North America the West is dominated by El Niño, a weather system driven by South Pacific currents. Here in Arizona it is King. While people were blaming the dry weather on climate change El Niño brought enormous amounts of water from the Sea of Cortez last week and dumped almost ten inches of rain on forest burn scars north of Flagstaff, causing massive mud flows. In East Flagstaff we barely had three inches of rain that week.
The longer you are out the more water per hour you will need. A 5 hour event needs more water per hour than an1 hour event.
Have sjogrens. Is there any way to lessen heat intolerance?
Important reminder with the heat increase across the planet. Thank you.
Very important Topic , Child died in Canada from heat stroke, child among lot of people, of a gathering, even though the child was in a stroller, hydrating, wear hat , seek shade , periodically, for me know the signs of heat stroke
Thanks!
I laid in the sun 15mins on both sides in 80f. My body temp went up 2.5f to 99f.
I almost 😅 died of heat stroke 🥵 at the park after walking 🚶♀️ past two mechanics 🧰 which caused my heat stroke 🥵 to increase.
So how does this differ from heat exhaustion because it sounds the same...
I had heat stroke as a child and I still have trouble with heat 30 years later.
I need to take electrolytes all summer.
This is scary because it's hard to recognize the signs.
Why no mention of electrolytes? Filtered water doesn’t hydrate you …
Since most of us will experience heatwaves thanks to climate change, this will be handy to know. Thanks Dr Mike 👍🏼
Is heat stroke the same as getting sick from the heat ?
Getting _really_ sick from heat is usually heat exhaustion - flushed face and serious fatigue. Getting sick from heat can be a number of things, including loss of electrolytes through sweating. Heat stroke is a medical emergency but any debilitating condition should be checked out by professionals. Heart attacks can hide under cover of heat exhaustion.
Watch Sam Bailey
Heat stroke results in runaway body temp yikes.
Hot 🥵 topic!
Don't forget ELECTROLYTES Doctor. Mike, too much water can flush the blood from important electrolytes, such as Potassium and Sodium, K+ They help with hydration to..
105 degrees temp. Don't run in that weather.
Some of the people who swim in the sea, lakes or rivers drown. Your “solution”: Don’t swim in those places.
@ it's crazy to jog in that heat
@@nosuchthing8, have you heard of the Badwater Ultramarathon, a 135-mile race that takes place in mid-July, from the Badwater Basin in Death Valley to the trailhead to Mount Whitney?
@ focus on 'death valley'
@@nosuchthing8, to date, no participant has died during or immediately after that race.
Not just water ..get your electrolytes
HOW TO PREVENT DEATH,....DON'T GET JABBED WITH GENE THERAPY.
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Even with wide brim hat?
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🤯😓🙏🏼
Funny you mixed your measurements…saying 1 liter is 2.2 pounds instead of 1 kilogram.
It's getting to be common with beverages, which are sold in things like two liter bottles. We still avoid talking about kilograms.
He's a doctor so he usually thinks in metric, but he's also talking to the public so he translates to our weird old standards.
You spent no less than zero minutes (or more than that) to talk about “heat acclimation.”
Stay in the u.k.
We get a 2 day summer.
Stop the scaremongering hyperbole.
😀😀
104 degrees Fahrenheit in London last month?
@@valeriesmith477 it was not the first time it happened, and it wont be the last. Much more extreme weather happened in the British Isles in the 1500s. People don't like to hear about history.
Okay but there are over 4 billion people who don't live in the UK. Go ahead and CENTER yourself in the heatwaves worldwide 🙄
@@valeriesmith477 yes, for 2 days!
Yeah yeah, heat exhaustion.. that's what's downing so many sports stars. 🤡🌎
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