that parent child grandchild image just blew my mind. The eggs that will one day become my future kids were with me when I was an embryo, so all three generations are present in at least a partial form.
i whouldnt say that its more like: "when my grandmother was cooking my mother i was inside her too" since you are a collection of your mom cells that where in there
For 20 years I didn't know my birth father who left before I was born. Last year I finally found him and we were both surprised to find that we were similar in beliefs, personalities, even likes and dislikes even though my mother differed from us in many of these and hadn't told me much about him growing up
@@XOPOIIIO ffs thats not how inheritance works. you inherit exactly 50% of your genes form your father and 50% from your mother. becouse sperms and egs ahve bnoth exactly halfe the gene coutn humans have.
Does this mean that what I had for breakfast today will determine my children's destiny? I'm not sure, but I do know that epigenetic inheritance is equal parts controversial and interesting. Sure, it's got more questions than answers, but that just means we have a lot more to learn about it. Get to it, scientists of tomorrow!
That part where they say we were once inside our maternal grandmas. Really shows how how we treat people might have consequences, not only now but in generations in the future... even amongst kids we might never get a chance to meet. So interesting.
What is sad from my P.O.V. is that everyday any of us venture from the safety of our house into public we witness how many humans treat others with so much disdaining entitlement. That's not a route to knowing peace. It's so heartbreaking.
I read about this somewhere else too. The evidence for epigenetics is strong. And it's scary. Staying healthy for men during conception has never been thought of as a problem but it could be that a man or woman smoking during conception could be as harmful as women smoking during pregnancy. Imagine that
Jalil Popalzai Yeah, i think it puts up the question if a person who wants a child has a duty for it, years before it is born, and therefore has to live really healthy and stuff like that.
How do they breed dogs that love to fetch a ball? Retrievers ? DNA can alter not just looks and health, but behaviors...? I think this is how migration and other animal behaviors are passed on.
Insofar as you may have inherited the genetic changes they brought on themselves. But that also means that its up to you to stay skinny and change those genetic markers for the next generation.
I see you have a reference to Jablonka's work. It's well worth reading her book 'Evolution in Four Dimensions', which explores the interesting interactions and interrelations between genetic, epigenetic, behavioral and symbolic inheritance systems.
Yes, epigenetic inheritance is a real phenomenon. It refers to the transmission of information from one generation to the next that affects traits, but doesn't involve changes to the underlying DNA sequence. Instead, epigenetic inheritance is mediated through chemical modifications to DNA and histones, which can influence gene expression. Researchers have observed epigenetic changes in various organisms, including plants, animals, and humans. These changes can be influenced by environmental factors such as stress, diet, and toxins, and they can sometimes be passed on to offspring. While the extent and significance of epigenetic inheritance are still being studied, evidence suggests that it plays a role in development, adaptation, and even certain diseases. However, it's important to note that epigenetic changes are usually reversible and often do not persist for many generations compared to traditional genetic inheritance.
Hey, this is a great explanation. You said that they’re often reversible? Can you point me in the direction of more info on this. My husbands grandma, mother and sister all struggle BIG TIME with lethargy, they can hardly work a full time job without feeling utterly wiped out. I have my suspicions it is something to with do epigenetic’s.
My dad got into a car accident before I was born that dented his skull. I was born with the exact same dent in the exact same spot. I always wondered if it was somehow passed on to me genetically.
So, huh, my mother having felt sick from the smell of fish in the early stages of her pregnancy might have activated gene flags in my developing embryo resulting in my lifelong fish intolerance? My body treats it as if it were poison (i.e.: immediate expulsion, no questions asked), so that could be due to misled exposure by proxy which resulted into my genes activating to identify it as poison?
Jean- Baptiste Pierre Antoine de Monet He developed a theory one day If one has simply resolved To act more evolved Then one's children will be born that way
Eating fat does not make you fat. If you want to make your mice fat then feed them sugar. When farmers want to fatten up their livestock they feed them corn (carbs) not fat. Read The Big Fat Surprise by Nina Teicholz to learn more.
+Kathryn Mercier Eating carbs makes you hungry so you eat more. Eating fat makes you feel stuffed so you don't eat as much. So in a round about way it matters what you eat.
Great video, Joe, made me think of Agrobacterium and the way they can share plasmids between individuals through bacterial conjugation. Could humans take this biological mechanism and make it somewhat of a human conjugation or is that just a cool plot for a science fiction movie? It would render hereditary traits obsolete, as we could just take some DNA from a fellow human with the desired trait, make a copy using enzymes and then implement it into our own code.
DO IT!!! YOU CAN DO THIS!!! NO MATTER WHAT PEOPLE SAY, YOU CAN, TRUST ME! SO MANY PEOPLE HAVE THOUGHT THEY COULDN'T BUT THEY DID! YOU CAN BE THE NEXT PERSON WHO SUCCEEDS!
Why did the mice being fed a high fat diet get fat? Because mice are herbivores and aren't evolved to eat a high fat diet, unlike hunans who just get full quickly and require less food when fed a high fat diet>(omnivores)
Exogenisis is the idea that life was brought on Earth by an external source (such as an asteroid or a spaceship). Like, maybe Earth wasn't home to bacteria and simple cells until an asteroid brought them here. That's the idea behind it.
so would it be accurate to assume that because women are born with all the eggs we will ever have, those eggs will carry the tags from the mother of the woman? this would imply that a woman's epigenetics, which change as the woman grows and matures, could only actually have an effect on her future grandchildren? or is it more complex than that?
It was eluded to, but how close of a tie between mother exposure during pregnancy and these effects is there? It would seem the only interesting effects would be those seen outside of that, and it wasn't clear evidence of such has been provided.
My mom burnt almons her entire body with hot water when she was little. All that's left are some scars on her right arm. Later I was born with the exact same scars, but instead of those scars i have red birthmarks.
+Everything Explained Neither! It is possible for two science channels to both cover the same topic without one copying the other. More perspectives, especially on a controversial topic like epigenetic inheritance, is a good thing. Anyway, I'm friends with the MinuteEarth team and I love their video on the topic. We've been discussing our different opinions on this subject for months.
+Daniel Silva Expose to the smell followed by something like an electrical shock. Rinse and repeat until fear happens without the shock. It's called "Conditioning" in case you want to look it up.
2:00 I was just thinking that. It's so weird when we disprove something, only to later figure out that the ridiculous idea actually had some merit. But not to the extreme of extending your neck to make your child's neck longer... Right? Oh man, what if it turned out he was right about that as well? Or at least somewhat?
For some reason I am very afraid of Eye Injuries. I've never had any experience like this, but I have a lot of fear and aversion to this type of wound. I feel anxious and nervous whenever I think about it. I can't process or imagine an Eye Wound, it's almost like a Phobia for me. My father and grandfather also had this fear, none of them had an injured eye. It's so strange.
Could we spread our trauma and fears through our children either via our own raising methods via our thoughts/actions/lessons? Or does it also lurk deep inside our DNA?
Has there ever been any evidence for epigenetic traits showing up more than two generations down the line? AFAIK the methylation of the stem cells in the ovaries of female embryos are _really_ deleted, so there is no way to have an effect of more than two generations along the maternal line and one generation along the paternal line.
+Penny Lane I have yet to see an animal study (and I've looked pretty hard) that goes past F3 for females and F2 for males. It's like the researchers just stop them there, or if they continue then they don't report it. That's what makes me skeptical of this in humans. But it's definitely been shown in plants across multiple generations. Time will tell?
I read of a study of pregnant women during WW2 (I forgot which country) - their children had "starvation syndrome" and were therefore, obese. This pattern was continued for 5 generations. Reminds me of this verse: Deuteronomy 5:9 "...visiting the guilt of parents on children, to the third and fourth generation ..."
The high fat diet wouldn't be the thing causing that kind of epigenetic result. The fact that the mother mouse was obese would be the reason. You would see the same result (likely worse) if it was a high sugar-low fat diet.
Except that he said it was a high fat diet that lead to them being fat. Eating more calories lead to them being fat, and it was the fact that they were fat (not dietary fat) which caused the epigenetic results.
I have a very im-probable theory about love. Like you said in this video, the cells for a child are inside of the baby before it's even born. My theory is that when someone falls in love, maybe the person they fall in love with has a similar and/or same child cell and that's why we have different tastes. But then again, you can't sense/see the cell and a stranger that you think is beautiful won't have the same genes as you but like I said, it's im-probable. Please tell me if this theory may actually be correct or not.
its unrelated just because stupid ppl tend to eat fatty (and stupid) stuff and then get fat in the process doesnt mean fat makes u fat try getting fat on avocado!
sooooooooDark An all-round high-fat diet makes you fat unless you burn all this extra fat. If you do, you don't get fat. That doesn't mean a high-fat diet doesn't make you fat though. What you said doesn't hold water.
i dont understand u u r agreeing with everything i say but then u say "what you said doesnt hold water"? if u dont use up calories u get fat (this concept is relatively clear scientificly speaking) what i was saying is that u dont get fat because ur eating fatty stuff its because u just eat too many calories without using them up but this calorie theory is kinda redundant anyways i doubt u can get fat by eating 15000 calories of fruit/nuts per day...ur stomach will be all funny id guess :p
sooooooooDark You said a high-fat diet doesn't equal getting fat. That in itself is a false statement because a high-fat diet makes you fat. You can exercise to avoid it, but in the end that's what makes you fat because you wouldn't get fat in the first place if you didn't eat. And yes, by eating fruit and nuts only you can also get fat. You'd just need more time and money because most fruits and nuts carry less fat than let's say meat or fish.
But we do receive more than just the DNA from our parents. We already know we get the mitochondria from our mothers. It shouldn’t be surprising we get other proteins during conception, and of course, other proteins through the placenta during pregnancy. We just probably don’t know what these effects these changes would have, or what exactly is being changed.
How about the traits can be passed on thru 1-2 generations, but not more, and after a few more generations it just happens that the traits recur by coincidence? Also i would like to add that a human as a machine, is not perfect. We are flawed.
I think it can differ for some people, here's an example, I'm 5'11, I'm taller than my mom and dad. also may I add that I am taller than both my grandparents from each side respectively. according to my dad, my great great grandpa was 6'2 so it depends
About the famine and heart attacks. seems like you should talk about what they did eat during the famine instead of what they didn't, as what they didn't wouldn't have had much of an effect on their dna... just sayin.
Maybe my life events wouldn't cause my great-grandchildren anything directly, but if it causes a pretty decent effect in MY kids and then it amplifies the nascent effects in my grandkids from me, which would pass along to them. If my events make something more probable for them through this process, it might tip the scales of probability. On an individual level (since I don't plan on having that many kids) it probably wouldn't do too much to my own progeny, but maybe the impacts of epigenetics is more visible on the aggregate level (causing distinct changes only when the population as a whole is hit with certain trends and events)?
I think I found the reason of why I am so excruatingly thin, my parents, when they were little is also very thin, they've grown a lot fatter today, meanwhile I am still struggling to get fat enough, no matter how much I eat, I just won't get fat, and it's frustrating, so I guess my ability to burn fat is turned on *all* the time? is that's what's happening here?
Meanwhile all I inherited was mental illness, anger issues and toxicity :( You have no idea how hard it is to stop myself from being a toxic a** hole. Thanks a lot, dad! :(
Epigenetics sounds like a mix of Lamarck and Darwin, I think they both had some truth to it, we may be still missing some key information on how fully evolution work. Genetics, Adaptation, and Natural Selection.
Hm... Why the fact that the mother that could past blood with the epigenetic of their life would be considered a really early exposure, and not proof of epigenetic? *Note: A very confusing question that I am perfectly sure no one will answer me.
cant it be like an encoded message in your DNA slightly pulling it in a certain evolutionary path faster then normal cause if i was that mouse and that fruity smell means its dangerous i would like my kid to know to stay away but i cannt sense i would most likely run the other way cause of my life experience telling me to stay away. so i some how send a message to my chield thought my DNA. but if he or future generations keep experiencing that conditioning wont it be similar to a catalyst to get a sharper sense of smell and detect it from a longer distance? i think its similar to the Sound video that make us more scare to certain sounds.but this is just my uneducated option
If moths are attracted to light...Why don't moths fly towards the sun? And to anyone who says "Well duh, their is no air up there, idiot" Please think about, do they really know what air is or that they need it?
I think Epigenetics certainly is true because i have an unprecedented fear of my wife/girlfriend dieing (My great grandfather married twice both his wifes died)
I totally believe in the validity of this. I have two dogs, a beagle/ German shepherd and a Sheltie. The Sheltie lived with just an old lady for half of his life, so he's very withdraw and very dependent on "the alpha female",-- that's his personality as a result of environmental factors. But despite this personality, despite being so sheltered for so long, he instinctively knows how to herd. 100% serious! Whenever my mom would leave, he would get aggressive and try to push her back inside, despite being so submissive and shy. The other dog doesn't do that. She's friendly and outgoing. And she hunts. We never taught her, never encouraged her, but she hunts stuff AND gives it to us as presents. I'm not saying epigenetics explains ALL of this, but it certainly makes it a lot more easy to explain.
Does this explain, sort of, why Americans of African decent have higher risks of blood pressure? Or is that all across the African genome regardless of origin?
Maybe a few ideas for next videos; 'Which was first, the chicken or the egg?" "Does God exist?" "Does gaming affect our brains" I really liked these so why not share them with you...
+Adan Rubio I don't think it's that easy, the egg is true I think, I don't believe in a god either, and maybe it doesn't affect our brains or in a way we didn't expect it.
Other animals laid eggs before chickens so it 100% true that the egg came before the chicken. Different video games make us use different parts of the brain. Many games don't affect people's minds to negatively, but there are some well researched papers that say video games can cause addiction. Of course there are are also other papers that say the opposite, but I personally believe that to some poeple it can become addictive.
Regarding the possibility of epigenetic changes to persist more than a few generations, there's very good evidence that epigenetic changes had a important role in the evolution of primates. See for example: Hernando-Herraez et al. 2013. Dynamics of DNA Methylation in Recent Human and Great Apes Evolution. PLOS Genetics, Published on September 2, 2013. journals.plos.org/plosgenetics/article?id=10.1371/journal.pgen.1003763
+woody500z If intelligence is something that can be measured, it isn't all that impressive. Its not as much that intelligence in something inherited, but more like specific talents in something that makes someone geared to be more successful in some field intellectual can be inherited. Beyond that there isn't a great way to show how intelligence could be something inherited, other than showing that a mutation that causes some mental disability can be passed down, but that is probably not what you meant when you said intelligence being inherited. There are some studies that show how intelligence is something that can be inherited genetically through a culmination effect of many genes, but that isn't really all that straight forward and leaves many things unanswered in my opinion. But studies that do address this question involves stuff in things like Alzheimer's and Parkinson's disorder (both neurological disorders), which can negatively affect neurons causing memory problems and stuff. Alzheimer's and Parkinson's disorder are things that can actually be diagnosed or are easier to measure than something like intelligence, more importantly they also know about some of the genes that may cause these disorders which makes it possible to better understand how things involving functions of the brain can be inherited.
that parent child grandchild image just blew my mind.
The eggs that will one day become my future kids were with me when I was an embryo, so all three generations are present in at least a partial form.
So true
+RainAngel111 My Grandma was partially pregnant of me... that's deep. I'm gonna go light another one.
This makes me wonder...
i whouldnt say that
its more like:
"when my grandmother was cooking my mother i was inside her too"
since you are a collection of your mom cells that where in there
Well said.. Really creation of life is amazing
For 20 years I didn't know my birth father who left before I was born. Last year I finally found him and we were both surprised to find that we were similar in beliefs, personalities, even likes and dislikes even though my mother differed from us in many of these and hadn't told me much about him growing up
Because you inherited more genes from your farther, or you are male.
@@XOPOIIIOi indeed had inherited more genes from my Father
@@XOPOIIIO ffs thats not how inheritance works. you inherit exactly 50% of your genes form your father and 50% from your mother. becouse sperms and egs ahve bnoth exactly halfe the gene coutn humans have.
Does this mean that what I had for breakfast today will determine my children's destiny? I'm not sure, but I do know that epigenetic inheritance is equal parts controversial and interesting.
Sure, it's got more questions than answers, but that just means we have a lot more to learn about it. Get to it, scientists of tomorrow!
I'm sad because I got dumped by my girfriend, but I have It's Okay to be Smart! Become smarter is a great way to get happier. Thanks! Love your videos
its kind of unfair :3
+It's Okay To Be Smart
Yay you finally covered it after i requested it 2 yrs ago
me very happy
+It's Okay To Be Smart indeed
TheGrace020
lol sigh a common unicode transcription glitch
That part where they say we were once inside our maternal grandmas. Really shows how how we treat people might have consequences, not only now but in generations in the future... even amongst kids we might never get a chance to meet. So interesting.
What is sad from my P.O.V. is that everyday any of us venture from the safety of our house into public we witness how many humans treat others with so much disdaining entitlement. That's not a route to knowing peace. It's so heartbreaking.
Humans: "we'll figure out nature!"
Nature: "lol, nope."
Hello great comment …
IT´S NOT OK TO BE SMART, IT´S GREAT TO BE SMART!
Yeah k
It's not ok to type in all caps.
Cam down 😰
@@charlieparker5678 *how about in all bold?*
@@QHalvorson That's even worse! Reeeeeee!
I absolutely love this channel! You guys always give us something to think about critically. Thank you!
I am studying engineering but i love biology too....and you make it even more interesting
Now this is some fascinating information. I am studying biology and this sort of thing is amazing. So complex, yet so articulate and beautiful.
I read about this somewhere else too. The evidence for epigenetics is strong. And it's scary. Staying healthy for men during conception has never been thought of as a problem but it could be that a man or woman smoking during conception could be as harmful as women smoking during pregnancy. Imagine that
We had this topic in our biology class recently...really interesting and it brings up some ethical questions.
+SEEKER yeah true.
so what the parent experiences or put themselves through, of good and bad, sort of affects their offspring.
is this what you mean
Jalil Popalzai Yeah, i think it puts up the question if a person who wants a child has a duty for it, years before it is born, and therefore has to live really healthy and stuff like that.
How do they breed dogs that love to fetch a ball? Retrievers ? DNA can alter not just looks and health, but behaviors...? I think this is how migration and other animal behaviors are passed on.
So did my parents set me up for being fat
Muh genetics
omegadan may be
They may have set you up, but you took the pass for the slam dunk!
Perhaps their parents experienced famine.
Insofar as you may have inherited the genetic changes they brought on themselves. But that also means that its up to you to stay skinny and change those genetic markers for the next generation.
My new favorite channel
I see you have a reference to Jablonka's work. It's well worth reading her book 'Evolution in Four Dimensions', which explores the interesting interactions and interrelations between genetic, epigenetic, behavioral and symbolic inheritance systems.
Yes, epigenetic inheritance is a real phenomenon. It refers to the transmission of information from one generation to the next that affects traits, but doesn't involve changes to the underlying DNA sequence. Instead, epigenetic inheritance is mediated through chemical modifications to DNA and histones, which can influence gene expression. Researchers have observed epigenetic changes in various organisms, including plants, animals, and humans. These changes can be influenced by environmental factors such as stress, diet, and toxins, and they can sometimes be passed on to offspring. While the extent and significance of epigenetic inheritance are still being studied, evidence suggests that it plays a role in development, adaptation, and even certain diseases. However, it's important to note that epigenetic changes are usually reversible and often do not persist for many generations compared to traditional genetic inheritance.
Hey, this is a great explanation. You said that they’re often reversible? Can you point me in the direction of more info on this. My husbands grandma, mother and sister all struggle BIG TIME with lethargy, they can hardly work a full time job without feeling utterly wiped out. I have my suspicions it is something to with do epigenetic’s.
My dad got into a car accident before I was born that dented his skull. I was born with the exact same dent in the exact same spot. I always wondered if it was somehow passed on to me genetically.
+Wade Wilson That's pushing it. You did not inherit that from your dad.
It's Okay To Be Smart Probably not, but there are studies out there that say physical trauma may alter your DNA. If not it's a strange coincidence.
thegamingbroz 11 Not if I was born that way. It isn't a injury.
Speaking of which, we did a test on this LITERALLY today! Great timing.
this needs more puns
I inherited my parents ability to copy fantastic TH-cam comments! :)
TH-cam was invented in 2007 idiot think they had youtube in 1990?
Synon-Anon (The Synonymous Anonymous) it was made in 2005 idiot
@@coolman44557 uhm may I introduce you into a cool trick called comedy?
@@coolman44557 r/woooooosh
Awesome video as ever, Dr. Hanson.
I suppose this means that there are always new things that our science know little or nothing about.
So, huh, my mother having felt sick from the smell of fish in the early stages of her pregnancy might have activated gene flags in my developing embryo resulting in my lifelong fish intolerance? My body treats it as if it were poison (i.e.: immediate expulsion, no questions asked), so that could be due to misled exposure by proxy which resulted into my genes activating to identify it as poison?
Much of who we are is defined not just by genes or environment, but also by the composition of bacteria in our guts.
I also have this, but with Cheese
With all the respect I can muster, as swedes, thanks for giving me and my friend the laugh of the day. You rule!
You deserve a heart
Jean- Baptiste Pierre Antoine de Monet
He developed a theory one day
If one has simply resolved
To act more evolved
Then one's children will be born that way
Eating fat does not make you fat. If you want to make your mice fat then feed them sugar. When farmers want to fatten up their livestock they feed them corn (carbs) not fat. Read The Big Fat Surprise by Nina Teicholz to learn more.
+Keira Churchill He said, at 1:28, that mice fed high fat diets get fat, unsurprisingly. It is something that many people believe but is incorrect.
+Kathryn Mercier Eating carbs makes you hungry so you eat more. Eating fat makes you feel stuffed so you don't eat as much. So in a round about way it matters what you eat.
Great video, Joe, made me think of Agrobacterium and the way they can share plasmids between individuals through bacterial conjugation. Could humans take this biological mechanism and make it somewhat of a human conjugation or is that just a cool plot for a science fiction movie? It would render hereditary traits obsolete, as we could just take some DNA from a fellow human with the desired trait, make a copy using enzymes and then implement it into our own code.
DO IT!!! YOU CAN DO THIS!!! NO MATTER WHAT PEOPLE SAY, YOU CAN, TRUST ME! SO MANY PEOPLE HAVE THOUGHT THEY COULDN'T BUT THEY DID! YOU CAN BE THE NEXT PERSON WHO SUCCEEDS!
+ChiChaChiHa Okey, I'll do it, I'll join the hot dog contest!
Fat
And so many of those people failed, wasting their life on an unachievable dream.
your advice just got me rejected
jk, I didn't do anything
+ChiChaChiHa Thank you...now, I'm in prision
Why did the mice being fed a high fat diet get fat? Because mice are herbivores and aren't evolved to eat a high fat diet, unlike hunans who just get full quickly and require less food when fed a high fat diet>(omnivores)
Epigenetics? More like EPIC genetics!
Can someone explain what "Exogenesis" is then? PLEASE. I looked up the meaning, but I am still confused.
Exogenisis is the idea that life was brought on Earth by an external source (such as an asteroid or a spaceship).
Like, maybe Earth wasn't home to bacteria and simple cells until an asteroid brought them here.
That's the idea behind it.
Oh, ok, cool. Thanks!
You stand there and tell us. But I want to see the research.
I just like how you pronounced Överkalix.
so would it be accurate to assume that because women are born with all the eggs we will ever have, those eggs will carry the tags from the mother of the woman? this would imply that a woman's epigenetics, which change as the woman grows and matures, could only actually have an effect on her future grandchildren? or is it more complex than that?
It would make since when u think about it
right? sort of disappointing thought, any positive changes I make would have to wait an extra generation to show results!
It was eluded to, but how close of a tie between mother exposure during pregnancy and these effects is there? It would seem the only interesting effects would be those seen outside of that, and it wasn't clear evidence of such has been provided.
Can you do another video on this? Would love to see an update if there is any new information.
My mom burnt almons her entire body with hot water when she was little. All that's left are some scars on her right arm. Later I was born with the exact same scars, but instead of those scars i have red birthmarks.
Oh yes! THANK YOU! More of this please 💜
I love ur videos man.. Keep up your good work...!!
I really recommend the book Epigenetics, Richard Fracis.
Did you get this from minuteearth... or the other way around?
+Everything Explained Neither! It is possible for two science channels to both cover the same topic without one copying the other. More perspectives, especially on a controversial topic like epigenetic inheritance, is a good thing.
Anyway, I'm friends with the MinuteEarth team and I love their video on the topic. We've been discussing our different opinions on this subject for months.
What kind of cruel things did they do to those poor mice to get them to fear a smell so badly that it was written in their genome :(
Oh shut up.
+Daniel Silva Expose to the smell followed by something like an electrical shock. Rinse and repeat until fear happens without the shock.
It's called "Conditioning" in case you want to look it up.
We share 45% DNA with plants, 50% with fungi, 60% with all multicellular animals and 70% with all vertebrates.
2:00 I was just thinking that. It's so weird when we disprove something, only to later figure out that the ridiculous idea actually had some merit. But not to the extreme of extending your neck to make your child's neck longer... Right? Oh man, what if it turned out he was right about that as well? Or at least somewhat?
For some reason I am very afraid of Eye Injuries. I've never had any experience like this, but I have a lot of fear and aversion to this type of wound. I feel anxious and nervous whenever I think about it. I can't process or imagine an Eye Wound, it's almost like a Phobia for me.
My father and grandfather also had this fear, none of them had an injured eye. It's so strange.
great episode
How has natural selection disproved the concept that acquired traits could be passed on?
This gonna be a good one
called it
What if Lysenko was correct?
Could we spread our trauma and fears through our children either via our own raising methods via our thoughts/actions/lessons? Or does it also lurk deep inside our DNA?
You should do a research about centrosomes, maybe you could find some answers, about consciousness too.
So what about heavy tobacco use or warts?
nice video :D, also nice new channel art
Has there ever been any evidence for epigenetic traits showing up more than two generations down the line? AFAIK the methylation of the stem cells in the ovaries of female embryos are _really_ deleted, so there is no way to have an effect of more than two generations along the maternal line and one generation along the paternal line.
+Penny Lane I have yet to see an animal study (and I've looked pretty hard) that goes past F3 for females and F2 for males. It's like the researchers just stop them there, or if they continue then they don't report it. That's what makes me skeptical of this in humans. But it's definitely been shown in plants across multiple generations. Time will tell?
It's Okay To Be Smart Okay plants are pretty different though. In fact, in terms of applicability to humans I would only care for studies in mammals.
I read of a study of pregnant women during WW2 (I forgot which country) - their children had "starvation syndrome" and were therefore, obese. This pattern was continued for 5 generations. Reminds me of this verse: Deuteronomy 5:9 "...visiting the guilt of parents on children, to the third and fourth generation ..."
So could something like muscles be passed on in this way?
Out of all the genetic code I only count one cat. This isn't Internet worthy :)
Larmarck ??? Is it you ? No , I'm mister epigenetic
Reminds me of the old saying, boys ought to be raised poor and girls ought to be raised rich.
The high fat diet wouldn't be the thing causing that kind of epigenetic result. The fact that the mother mouse was obese would be the reason.
You would see the same result (likely worse) if it was a high sugar-low fat diet.
That's what he said.
Except that he said it was a high fat diet that lead to them being fat. Eating more calories lead to them being fat, and it was the fact that they were fat (not dietary fat) which caused the epigenetic results.
Yeah, he pretty much said that in a slightly different way.
+cubs0110 But the specific type of diet is relevant, I guess that's why it's mentioned.
Sven I'm saying that it's not, apart from being high in calories.
I have a very im-probable theory about love. Like you said in this video, the cells for a child are inside of the baby before it's even born. My theory is that when someone falls in love, maybe the person they fall in love with has a similar and/or same child cell and that's why we have different tastes. But then again, you can't sense/see the cell and a stranger that you think is beautiful won't have the same genes as you but like I said, it's im-probable. Please tell me if this theory may actually be correct or not.
I instinctively always knew this because of mosquitoes, I have seen biting me at the parts of body which is hidden from sight of view.
+Rajiv Photos Please elaborate.
Probably because that's where the best veins are. They can't just bite anywhere.
@@pshuckle7488 they like oxygenated blood which is in capillaries, veins have de-oxygenated blood which they don't prefer .
1:35
high fat diet =/= getting fat
+sooooooooDark It often does equal getting fat.
its unrelated
just because stupid ppl tend to eat fatty (and stupid) stuff and then get fat in the process doesnt mean fat makes u fat
try getting fat on avocado!
sooooooooDark An all-round high-fat diet makes you fat unless you burn all this extra fat. If you do, you don't get fat. That doesn't mean a high-fat diet doesn't make you fat though. What you said doesn't hold water.
i dont understand u
u r agreeing with everything i say but then u say "what you said doesnt hold water"?
if u dont use up calories u get fat (this concept is relatively clear scientificly speaking)
what i was saying is that u dont get fat because ur eating fatty stuff its because u just eat too many calories without using them up
but this calorie theory is kinda redundant anyways
i doubt u can get fat by eating 15000 calories of fruit/nuts per day...ur stomach will be all funny id guess :p
sooooooooDark You said a high-fat diet doesn't equal getting fat. That in itself is a false statement because a high-fat diet makes you fat. You can exercise to avoid it, but in the end that's what makes you fat because you wouldn't get fat in the first place if you didn't eat.
And yes, by eating fruit and nuts only you can also get fat. You'd just need more time and money because most fruits and nuts carry less fat than let's say meat or fish.
But we do receive more than just the DNA from our parents. We already know we get the mitochondria from our mothers. It shouldn’t be surprising we get other proteins during conception, and of course, other proteins through the placenta during pregnancy. We just probably don’t know what these effects these changes would have, or what exactly is being changed.
How about the traits can be passed on thru 1-2 generations, but not more, and after a few more generations it just happens that the traits recur by coincidence? Also i would like to add that a human as a machine, is not perfect. We are flawed.
I think it can differ for some people, here's an example, I'm 5'11, I'm taller than my mom and dad. also may I add that I am taller than both my grandparents from each side respectively. according to my dad, my great great grandpa was 6'2 so it depends
What’s the difference between telegony and heteropaternal superfecundation? Thx
The mother is still a hoe and the fathers are still cuckolds.
About the famine and heart attacks. seems like you should talk about what they did eat during the famine instead of what they didn't, as what they didn't wouldn't have had much of an effect on their dna... just sayin.
Maybe my life events wouldn't cause my great-grandchildren anything directly, but if it causes a pretty decent effect in MY kids and then it amplifies the nascent effects in my grandkids from me, which would pass along to them. If my events make something more probable for them through this process, it might tip the scales of probability. On an individual level (since I don't plan on having that many kids) it probably wouldn't do too much to my own progeny, but maybe the impacts of epigenetics is more visible on the aggregate level (causing distinct changes only when the population as a whole is hit with certain trends and events)?
I think I found the reason of why I am so excruatingly thin, my parents, when they were little is also very thin, they've grown a lot fatter today, meanwhile I am still struggling to get fat enough, no matter how much I eat, I just won't get fat, and it's frustrating, so I guess my ability to burn fat is turned on *all* the time? is that's what's happening here?
Meanwhile all I inherited was mental illness, anger issues and toxicity :( You have no idea how hard it is to stop myself from being a toxic a** hole. Thanks a lot, dad! :(
Epigenetics sounds like a mix of Lamarck and Darwin, I think they both had some truth to it, we may be still missing some key information on how fully evolution work. Genetics, Adaptation, and Natural Selection.
Doesn't Dawkins deny epigenetic inheritance? I'm interested in understanding the various views on this subject and the existing state of evidence.
I like your hair style:)
The pronunciation on överkalix is hilarious. I don't mind it, just as a native swede it sounded funny.
Make i hate mars bars
it has spread out to other chanels now...
Fat
Hiiisssss/fat/gay
+Lord Zumar
HISSS
SMALL LOAN OF A MILLION DOLLARS
FAKE AND GAY
I LOVE BIG DILDOS
FAT
+CS:GO player This cracked me up, man.
It seems like YES as response to the question.
Never realised this was something that was that new
Hm... Why the fact that the mother that could past blood with the epigenetic of their life would be considered a really early exposure, and not proof of epigenetic?
*Note: A very confusing question that I am perfectly sure no one will answer me.
Sooooooo, Lamarck was a BIT right?
So basically everything I ever learned is wrong?
cant it be like an encoded message in your DNA slightly pulling it in a certain evolutionary path faster then normal cause if i was that mouse and that fruity smell means its dangerous i would like my kid to know to stay away but i cannt sense i would most likely run the other way cause of my life experience telling me to stay away. so i some how send a message to my chield thought my DNA. but if he or future generations keep experiencing that conditioning wont it be similar to a catalyst to get a sharper sense of smell and detect it from a longer distance? i think its similar to the Sound video that make us more scare to certain sounds.but this is just my uneducated option
If moths are attracted to light...Why don't moths fly towards the sun? And to anyone who says "Well duh, their is no air up there, idiot" Please think about, do they really know what air is or that they need it?
To put it in simple terms... We don't actually know.
plz make a show on cosmic holes joe...
I think Epigenetics certainly is true because i have an unprecedented fear of my wife/girlfriend dieing (My great grandfather married twice both his wifes died)
I totally believe in the validity of this.
I have two dogs, a beagle/ German shepherd and a Sheltie.
The Sheltie lived with just an old lady for half of his life, so he's very withdraw and very dependent on "the alpha female",-- that's his personality as a result of environmental factors. But despite this personality, despite being so sheltered for so long, he instinctively knows how to herd. 100% serious! Whenever my mom would leave, he would get aggressive and try to push her back inside, despite being so submissive and shy.
The other dog doesn't do that. She's friendly and outgoing. And she hunts. We never taught her, never encouraged her, but she hunts stuff AND gives it to us as presents. I'm not saying epigenetics explains ALL of this, but it certainly makes it a lot more easy to explain.
There are no blank sleights. personal experience is passed on. this is the nature of "instinct."
+tekubus Citations please.
Do a video on tachyon particles
Im early so let me think of a joke..
I CANT THINK THE PRESSURES TO HARD ON ME!!!
5:10 What about Crash course games? IS THAT NOT IMPORTANT?
Does this explain, sort of, why Americans of African decent have higher risks of blood pressure? Or is that all across the African genome regardless of origin?
My girlfriend says, "Water has Memory." And she is an expert in psychoimmunobiology.
Maybe a few ideas for next videos;
'Which was first, the chicken or the egg?"
"Does God exist?"
"Does gaming affect our brains"
I really liked these so why not share them with you...
egg, no, and of course
+Adan Rubio I don't think it's that easy, the egg is true I think, I don't believe in a god either, and maybe it doesn't affect our brains or in a way we didn't expect it.
Other animals laid eggs before chickens so it 100% true that the egg came before the chicken. Different video games make us use different parts of the brain. Many games don't affect people's minds to negatively, but there are some well researched papers that say video games can cause addiction. Of course there are are also other papers that say the opposite, but I personally believe that to some poeple it can become addictive.
Either egg, or its a pointless semantics of at what point is a chicken a chicken.
No one knows.
Everything does.
I wonder if I can pass down my mad minecraft skills.
+Dinosaur Emperor What kind of Minecraft skills do you have?
ƁᴇғᴏʀᴇƮʜᴇļɴᴛᴇʀɴᴇᴛ I sometimes stumble upon the portal to the end without using the eye of ender.
Dinosaur Emperor That's chance, not skill.
ƁᴇғᴏʀᴇƮʜᴇļɴᴛᴇʀɴᴇᴛ That's your opinion.
thegamingbroz 11 I located a village within just 2 hours after I found my last end portal. That can't be a coincidence.
well now i know why i play my guitar song same that played my dad
Regarding the possibility of epigenetic changes to persist more than a few generations, there's very good evidence that epigenetic changes had a important role in the evolution of primates. See for example:
Hernando-Herraez et al. 2013. Dynamics of DNA Methylation in Recent Human and Great Apes Evolution. PLOS Genetics, Published on September 2, 2013.
journals.plos.org/plosgenetics/article?id=10.1371/journal.pgen.1003763
Why does everyone seem to shy away from declaring intelligence being inherited?
+woody500z Because they're afraid of eugenics for some reason.
+woody500z If intelligence is something that can be measured, it isn't all that impressive. Its not as much that intelligence in something inherited, but more like specific talents in something that makes someone geared to be more successful in some field intellectual can be inherited. Beyond that there isn't a great way to show how intelligence could be something inherited, other than showing that a mutation that causes some mental disability can be passed down, but that is probably not what you meant when you said intelligence being inherited. There are some studies that show how intelligence is something that can be inherited genetically through a culmination effect of many genes, but that isn't really all that straight forward and leaves many things unanswered in my opinion. But studies that do address this question involves stuff in things like Alzheimer's and Parkinson's disorder (both neurological disorders), which can negatively affect neurons causing memory problems and stuff. Alzheimer's and Parkinson's disorder are things that can actually be diagnosed or are easier to measure than something like intelligence, more importantly they also know about some of the genes that may cause these disorders which makes it possible to better understand how things involving functions of the brain can be inherited.
That pronouncing of Överkalix. ^^
Genetic evolution is a process of change.
It's just bacteria composition in the guts, not genes.
2:46
2:58
Is matrix possible??