Are Humans Still Evolving?

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Published 2022-05-19
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We’re living longer. Dying less. Human life expectancy has doubled in just a couple centuries. Machines and meals and medicines keeping us alive long past the age where we can make babies. Does this mean our species is no longer under the influence of natural selection? Have humans stopped evolving?

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All Comments (21)
  • @besmart
    I'm definitely still evolving. This isn't even my final form!  Leave me a comment and let me know how weirded out you are by the future prospects for human evolution
  • In a lot of cases the Bajou people lose their hearing as they get older due to the constant diving under water. So they have this amazing ability to hold their breath under water for longer than anyone else but the constant pressure changes damage their hearing overtime so they essentially traded their hearing for the ability.
  • @Tockrellman
    I’ve evolved into a couch potato. Edit: 7K likes? Mom, get the camera!
  • @alex.g7317
    I’ve been asking the same question. Thanks for answering it.
  • @JonasWilms
    "Humans die less" Last time i checked the average death rate per person was still 1, i'm happy that they are improving on it.
  • @vdevov
    5:50 I’m half Native American and half European, and this fact blew my mind. Some time in the past few years, my earwax changed dramatically. From what would be considered Native to European, according to this… My doctors seemed confused by it. Dormant genes somehow switched on due to age maybe? So weird.
  • @deadman9335
    I am a mutant. We found that my dads side of the family carried genes for extra muscle strands. Out of 3 sons, I was the one that inherited this gene which my brothers always found weird growing up. No matter how much taller and more muscled they were, I was always in the same weight class and could always lift the same if not more than them. We finally found this out when I was 15 as without any previous weight training I was able to bench press 400 pounds in a competitive lifting challenge bet us, adding more and more weight each 20 reps I stopped there knowing that I could have gone higher but I would struggled passed it. Later on when I was getting my body checked out on a completely unrelated note, they noticed my muscle looked weird and when they got back to me later, they told me that I had 15 more muscle strands per millimeter of muscle than normal people which not only makes me stronger but also makes me about 40-50 pounds heavier. Which is why I almost sink in water. Today after being starved at 16 and having a stroke at 17, I weight 210-220 pounds and I can still lift 300 pounds but I don't push myself anymore do to health reasons caused by the stroke. This isn't my only mutation however as I also have color changing eyes which contain green, brown, blue, yellow, and orange colors. I also have an extreme metabolism which causes me to lose up to 11 pounds a day if I'm working. When I first caught covid, I was quarantined to my bedroom, my sister was told to feed me but she only fed me one PB&J every other day and I was sick for a month in a half. Around the end of that my mother started to feed me because I came out and explained I was starving as despite the fact I was laying down all day not doing anything except fighting covid, I lost 32 pounds which at the time put me at 150 pounds and I looked like a Skeleton. Now I am a little taller, I'm still mostly muscle but always have a little gut because if I don't, a days work is horrible on my body.
  • @nepnick5950
    The thing about life expectancy is a bit distorted. Yes, there were more younger deaths earlier in history, but most of them were at a very young age (young children) and countered by higher birth rates. - It doesn't devalidate the point of there being natural selection (children dying from some germs, thus potentially breeding a higher resistance to it in the survivors), but makes the impact seem more profound than it is.
  • Not just the Bajaus, the Orang Laut (we call them the Sekaks in my island) of Sumatran eastern coasts and the Mokens of southern Myanmar have this adaptation too. The Mokens even take it further. They can see clearly underwater without the help of goggles. And they all share the exact same lifestyle. Only in different places.
  • @delphinidin
    The LOSS of certain kinds of natural selection can also have an effect on our genetics! For instance, I've heard that the average size of babies' heads at birth is going up! It used to be that a baby with a big head could not fit through the birth canal, causing death for both child and (usually) mother. That was a natural selection pressure that kept the number of people with big-headed-baby genes low in the population. But now, with safe c-section births, these babies can be born! This means a larger number of people in the population can now have genes for big-headed babies.
  • @Shockprowl
    I only discovered this channel recently after stumbling upon the crossover with SpaceTime and Eons on the origins of life- but I am now hooked. Great content presented in a fun and informative way. Thank you for all the hard work.
  • @eskrior6094
    I imagine a parallel universe were he just drowns at the beginning and the whole video is just him with he's head in the water bowl
  • @applegal3058
    If it wasn't for modern medicine, I probably wouldn't have survived my childhood. I spent a lot of time in hospitals and took lots of antibiotics as a child, and now I take a medication that saves my liver from inflammation and possible cancer, which actually ended up killing my grandmother who has the same liver disease. I wonder if medicine is allowing some genetic disorders to be passed on since more children survive?
  • @supergoat1507
    I feel like in the future something might happen with our eardrums them being able to tolerate more noise or something along those lines since people now and probably in the future are still gonna be using headphones constantly
  • @Newblackpoet
    Great video as usual. It's true that the process that leads to an innovation or scientific advancements is a bumpy ride and it involves many people working and collaborating with each other. However, I'm surprised that Joe didn't mention Louis Pasteur and Robert Koch, both remarkable scientists that made substantial contributions to the fields of vaccination,microbiology and bacteriology. I guess that you have to select among many people and those were left apart for this video. Maybe you can talk about them in the future. Just a thought.
  • So if a Himalayan has a kid with an Indonesian, that kid might be able to hold their breath for 16 min with little effort? Larger spleen + low oxygen breathing = “I only need to breathe once every 15 minutes?”
  • This was a really good presentation. However it seems as if the topic(s) covered were rather broad. Could the production team consider going a little deeper on each of these sub points? Perhaps a small series all based on this one subject? I found myself fascinated with this and want to know more. Well done! It’s almost as if you are trying to get people interested in the subjects you cover. Please - MORE! -
  • @seraph82
    Who or what is saying, "I'm well aware," in the background? lol. I love those little production details. <3