Heat: How Much Can the Human Body Take?
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- เผยแพร่เมื่อ 25 ก.ค. 2024
- Climate change, anyone? It's the hottest summer ever and the long-term forecast calls for more of the same. It's pushing our bodies to the limit, but you do you really know how our body responds to heat, and how and when it gets to be too much? Grab a cool drink and check out this episode of Vitals.
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Find our experts and hosts:
:: Sheena William, RN ::
Twitter: @Keepingitkinky1
Instagram: @keepingitkinky
:: Alok Patel, MD ::
Website: alokpatelmd.com/
Twitter: @AlokPatelMD
Instagram: @alokpatelmd
:: Caitlin Rublee, MD ::
www.coloradowm.org/caitlin-ru...
Rublee is Assistant Professor of Emergency Medicine at the University of Colorado School of Medicine and the University of Colorado School of Public Health. Her research addresses the climate crisis through health policy and evidence-informed practice, as she teaches a new generation of physicians and health industry leaders.
:: Pam Reed ::
www.pamreedultra.com/
Reed is a legendary endurance athlete and ultramarathoner whose feats include record-setting victories in the 135-mile Badwater race in 2002 and 2003. In summer 2023, at age 62, she completed the Desert States 100, the Badwater and the Hardrock 100 all within three weeks.
Thanks to sports photographer Jacob Banta, who took those great shots of Pam at this year's race.
www.bantavisuals.com/
Want to Read More?
Are heat deaths undercounted?
www.wbur.org/news/2023/08/31/...
Record-Breaking Heat
www.pbs.org/newshour/science/....
Europe's Deadly Heat Waves
www.nature.com/articles/s4159...
The Future Forecast
time.com/6198720/heatwave-hea...
www.scientificamerican.com/ar...
More On the Heat Index
www.weather.gov/ama/heatindex...
Heat-Related Illness
www.cdc.gov/niosh/topics/heat...
Heat, Air Pollution & the Lungs
www.lung.org/blog/summer-heat...
Medications That Raise Risk
www.healthpartners.com/blog/m...
The Hypothalamus
askabiologist.asu.edu/bird-hy....
The Badwater 135 Race
www.badwater.com/
00:00 Intro
00:20 Counting heat deaths
01:31 List of deadly heat waves
02:58 How the body naturally stays cool (explaining sweat)
03:46 Heat exhaustion & heat stroke
04:39 water or sports drinks?
05:49 Heat's effect on different body systems
07:28 Ultramarathoner Pam Reed
11:11 Acclimating to heat
12:35 Medications that raise risk
The terrible thing is for workers who can't stay out of the sun during the day.
PBS vitals has quickly become my favorite channel on TH-cam ❤
This year it seems europe was caught between two extremes in July; It was either very wet and colder than usual or extremely dry and very hot. While people were boiling in the southern countries we have had rain nearly every day and colder summer temperatures than usual here in south Norway and the Netherlands 😑
I’ve lived in south Texas for most of my life & I still cannot tolerate heat. Going out to swim, no problem but any other activity just wore me out. I’ve always sweated easily but the humidity down here makes it nearly impossible for sweat to evaporate, making you feel like you’re wearing a wet blanket.
Oddly, my mom doesn’t sweat. I think she did lightly when she was younger but hasn’t in the last 20years or so. Nothing going on that she’s aware of. She loves the heat but knows when she’s had too much of it; she’s an RN. She grew up in Massachusetts with cold winters, like the guest experienced. I wonder if that extreme makes it easier to adapt to another.
I grew up with no AC, using attic fans, wearing a light sweater in 90 degrees riding my bike. Our weather was different back then, we always had light rains every afternoon and we had more trees for shade. Even though we have always had humidity we had seasons. Now our weather is just a mess. There is concrete and business and developed land everywhere. When they cut down our trees to make wider lanes, the temps felt 20 degrees hotter. We also have more cars in our neighborhoods and less local markets. We have more people with Asthma, Diabetes, high blood pressure, allergies, etc. Our group of cities and towns that used to have suburbs, farms, swamps, and some factories has become a megaopolis that surrounds cancer alley. I know people that take at least one of every drug you mentioned. Most of them have to work and go to school. A few of them have to work outside.
Thanks for the important PSA! 🧡💚
Temperature sensitivity can be influenced by hormones too. I live in the tropics and the heat rarely bothered me. I was more cold sensitive and preferred warm weather, but now that I'm getting older something has switched. I am way more heat sensitive and less cold sensitive, and I started sweating more. I barely sweat before, now its constant. And with our humid tropical heat, it feels awful. I'm thinking of eventually moving somewhere further from the equator if this goes on.
Very informational, great content!
Glad you enjoyed it
Running in 90° was always my favorite thing. Of it got under 65° I always felt like my muscles were physically, they didn’t want to move.
But after I started doing that I started at a factory job where everything was cooked and sealed with steam. It was 90°/ 100% humidity in the winter and 120°+ 100% humidity in the hottest days of summer.
I was so thankful that the summer I took up running happened to be during the hottest summer on record for the area. For about 7 weeks, nearly every day was 90°, often with heat index of 105°+, annnnd I was building a shed from scratch that while summer, so I was outside all day even when not running.
(For the record, I live about 100 miles west of Chicago and was born and raised in Chicago. Though summers here have always had extremes, they didn’t usually last more than a week and the cold time of year is about 2 months longer than the warm. And in Chicago, cold is cooooold. I’ve never been able to naturally acclimate to my standard climate because this region, without extreme weather, fluctuates between -10° and 90° every year).
Thank you for this video! More people need to hear this message!
Can one acclimate to the cold as well as the heat? Growing up, my brother would leave his bedroom window open to the winter cold even though I felt the rest of the house was chilly already. And once I heard from a tour guide in London that he slept in the open air year-round without heating or air conditioning.
One of our team once reported a story with Lynne Cox, a marathon swimmer famous for cold water efforts like a 2-mile swim in the waters of Antarctica. She trained by gradually immersing herself in colder and colder water, to a point where most people wouldn't even be able to breathe in. By the time she headed for Antarctica, she told us that if it was 55 degrees outside and she was in a T-shirt, she would still be sweating. And 70 degree water felt like a warm bath :)
I think my body is broken! 😂 I grew up in Southern California where summer can easily be in the 100s, but have spent the last 12 years in North Carolina and I still don't feel use to it! It's always the humidity that gets me, plus I have asthma, though it has been much more controlled here. I can't wait for Fall!
We feel you!
@@pbsvitalsYou do Feel it through the "Electronical Currents" that normally are sent thro' the process of *Data Transference* whenever someone has Stated Their own Opinion?
2 things 1. Look at cooling vest especially a phase changing cooling vest! 2. Imagine if we all bumped the thermostat by a degree how much energy we would save and with a heating planet we would better regulate for it! But sadly that won't happen bc nobody wants to sacrifice anything. Where is all the concern for children when it comes to leaving them a habital planet?
I wouldn’t wish this Central Texas Heat on my worst enemy 🥵🔥
Well you definitely wouldn't like australia and our climate never changed it's always been hot
@@joanamasora2884 wouldn’t be able to deal bro lol
@@lamarpaid1879hydration is the key you have to stay hydrated
The human body can withstand temperatures of up to 160°F. Some saunas have temperatures of 190°F.
Me personally, I would start panicking about the summer temps until the atmosphere gets to 140°F. That's when s.h.t.f.
I am now homeless no water, food and its going to be 88 degrees. No way to get anywhere in a rural area. I need Help please!!
Guys, we are not all using the archaic F° system. At least put the C° equivalent in the video please, especialy when talking about temperarure.
Thanks for the video.
you might have a point... nexr time!
PBS is the US's free "public broadcast station." So, I assume that's why the default units are to the US default.
The Fahrenheit system is great for body temp, because it was initially made so that 100 degrees would represent "basic human body temp" (though as we now know, it didn't nail that accurately). That can make it have an "intuitive feel" to those who use the system, because 0% of your body temp outside and below is going to feel awful, 70-80% body temp can feel quite comfortable, and 90+% body temp is going to feel hot since it's so close to, equal to, or above your own. Of course, C feels intuitive as well when you've grown up with it - that's just some help getting a feel for the system if you're not used to Fahrenheit.
Still, I'd love for the US and Canada to move to more metric, so I support this message!
Plus the Celsius system, where water freezes at 0 (vs 32 in F) and boils at 100 (vs 212 in F), also is incredibly convenient, so.
Start using it. Fahrenheit makes more sense.
@johnhendel7357 No. I prefer Kelvin. Celsius make by far more sesne than Fahrenheit. Water, a universel solvant found everywere, froze at 0 and boil at 100°C at normal atmosphere. It's easy to build a scale from it.
@@Victor-ek1fw The measure systems in use in Canada is complicated. It depends of the subject in what conditions. It's because the old folks learn the imperial system and Canada had switch to the metric system since. Type in google "how canadians mesure things". It's hard to feel if you haven't grow here. At most, in official matters, it's metric. In innoficial, it's a mix that tend to switch to metric as older folks die.
I am homeless in Oklahoma. I have no water, food, no way to cool off. Its going to be 88 degrees today and 90 tomorrow. I have no transportation in a rural area. I am going to die here.
And I can't sweat!! I'm already weak.
Hope you are holding up out there ❤❤
May the Anthropocene (Pyrocene (?)) epoch make the Permian-Triassic extinction event seem like a minor footnote in the pages of Earths history. Let us bear witness to the fruition of scenario SSP5-8.5 of the IPCC assessment
I wonder how many people die from winter cold fronts.
Worldwide, more people die from cold than from heat.
there are so much born every day when you say so many died that is because there are more people every day there are a lot more people every day?