Every 'Useless' Body Part Explained From Head to Toe | WIRED
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- čas přidán 7. 06. 2024
- Dr. Jeffrey Laitman joins WIRED to break down every ‘useless’, vestigial organ and structure in our evolved human bodies. From the “wisdom” teeth and our simian tailbones down to muscles made less important by our double-arched feet, Dr. Laitman highlights where it came from-and how it ended up still inside of us.
Director: Lisandro Perez-Rey
Director of Photography: Francis Bernal
Editor: Louville Moore
Expert: Dr. Jeffrey Laitman
Line Producer: Joseph Buscemi
Associate Producer: Paul Gulyas; Kameryn Hamilton
Production Manager: D. Eric Martinez
Production Coordinator: Fernando Davila
Camera Operator: Rahil Ashruff
Sound Mixer: Gabe Quiroga
Production Assistant: Noah Bierbrier
Post Production Supervisor: Alexa Deutsch
Post Production Coordinator: Ian Bryant
Supervising Editor: Doug Larsen
Additional Editor: Paul Tael
Assistant Editor: Billy Ward
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It's clear to me when watching this video that much of Dr. Laitman's explanations was cut for the sake of time, but I for one would not mind watching a full length version. His presentation is very entertaining and informative.
Yeesss full version please
Full version and more features!
yesss a full version would be so nice. I was left thirsty for more
They rly got all the flat feeders to watch with the thumbnail 😂
Agreed. We need the Director's cut. Dare I say the Snyder cut.
If this guy was my biology teacher with his same amount of energy.
I would be a doctor by now.
MORE OF HIM PLEASE!
@@VeganSemihCyprus33wow. Pathetic attempt to hype your fave documentary. There is no truth conspiracy surrounding vestigial anatomy except the ever lasting movement of Creationists against evolution. It's great that you woke up to mind- body awareness and attunement, but stay off Dr jL's and WIRED's coat tails you baiting bull shover.
no you wouldn't
@@-COBRA How come i am not a loser like you i actually reached a pretty high level in academia :D
The lies you tell yourself
you really belive your grandmothers grandmothers grandmothers grandmothers grandmothers grandmothers grandmothers was a ape or chimpanzee
Dr. Laitman was my anatomy teacher in medical school!! The man is a legend who cares as deeply for his students as he does for the human body, always thought he deserved a bigger audience!
I might’ve missed it in this video but where does he teach? He has a knack for it!
Icahn School of medicine at Mount Sinai in Manhattan. I was his student as well.
If he was he would have taught you the truth and that there is two species of humans and not one.
I could listen to him talk all day. For one, I love a good borough accent-it reminds me of yesteryear. And for two, he is probably the most charismatic doctor-scientist I’ve ever seen!
@@theoryofpersonality1420 your sentence is so dumb, it physically hurts
the brain. Another organ that's never used in most people.
hahahahaha, good one
.. including you
lmao
@@kingzingo1784 and you
@@kingzingo1784n you😔
I was born with flat feet and ever since I can remember - about 5 years old or so - walking for periods of time over 20 minutes would hurt my feet badly, and running was a no go unless it was done in extremely short bursts. Even after walking you could feel the foot pain for a long period of time, even if you're sitting down. Eventually I underwent the Evan's Procedure, which adds bone graphs to create an arch in my foot. After both feet were operated on and about 2 years of total recovery, my feet are almost back to normal. Sometimes weird foot cramps occur, and running or walking up stairs for excessive periods of time can hurt. Nonetheless, I'm very thankful that such a surgery exists, and I am much more mobile.
Don't take your arch for granted!
Glad you found a solution.
@@noodlessssssssssssssReally? I also have completely flat feet but I don’t feel any pain or discomfort.
I have flat feet and my sister closest in age has the biggest arch ever… I feel robbed.
I used to have special shoes in hopes to get an arch when I was little, but it just got so expensive! It also didn't help that school had us use formal black shoes and my special ones didn't cut it
flat feet actually quite beneficial for aquatic activities such as swimming and diving
This is not just a Dr. explaining this to us, but this gentleman is a natural born teacher, with the special nuances to draw the attention of his audience.
*genetically born teacher*
Literally, I loved his enthusiasm 😂
Meh, he's a teacher for monkey people. For the other 15% of the worlds population this is useless.
FR
He is a professor.
I like this Doctor, he is the kind of knowledgeable person that has the knack for making probably complex portions of medical knowledge sound simple. Would live to see more of him! 😊
you talk like Dr. John Sturgis
I was thinking the same
I was thinking the same
I was thinking the same
i was thinking the same
I was thinking the same
I have flat feet, and unfortunately passed it on to all four of my children. As far as we’ve been able to determine, no one else in my immediate family, or immediate ancestry, had or has flat feet. It’s very inconvenient and has resulted, so far, in my having three surgeries to one of my feet. All of my children have to use prescription orthoses. It never occurred to me to start trying to walk on all fours. If only I knew this before.
I’m the only flat footed person in my family. My solution so far has been to wear flatter shoes. What can I look forward to in life?
I also have flat feet, i try to stick to the most comfortable shoes as possible like adidas boost or nike react
@@iCozzh for me the adidas boosts make the bottom of my feet very painful
@@popcornbutter6820 really? Ive got a bunch of yeezys and ultraboosts and theyre lovely for my feet. The ultraboost 3.0 are noticeably worse than the 4.0 and newer which were significantly improved
Return to monke was the answer all along
As a Doctor, I’ve always found it a little unnerving how easily we label a body part as “useless”. It’s a very strong term that makes people believe it’s a fact when in reality, it may just mean “not enough research”. Imagine how many perfectly functioning appendix’s have been removed preemptively under the guise of it being a useless body part.
I always thought this about wisdom teeth. Mine have never bothered me, yet dentist are constantly trying to make appointments for me to have them out. I have to speak up and say "hey! I don't want them out"
A dentist actually told me I might as well get them out now so they don't cause problems later. Well if I went by that logic, take all of my teeth. 😅
The thing about appendicitis is that it is a very tricky problem. It can many times give out false positives and many times there are appendices removed by mistake
But the problems that an unreasonably removed appendix creates is far far less than a burst appendix. Thats why doctors don't take risks at appendix and usually they remove it if they suspect there is a problem with it. In fact they even say there is no doctor who will diagnose appendicitis every single time, and if they do they have most likely missed an appendicitis.
@@gordatadosonly take it out if it does more damage than good
@@gordatados bro, all your other teeth didn't come up sideway like that though.
normal teeth are just, a teeth. brush it 2-3 times a day, go to the dentist appointment every 6 month to clean it up and you get them great for your whole life.
I got all 4 of mine removed before it become painfully large and hard to remove.
For sure, nothing God has created is "useless". If tens of thousands of "body parts" has already been found function for, one should only be way too much careful before saying "useless"!
I have the "wiggly ear" muscle and I have a lot of fun with it, I also notice that when I hear a new sound in the ambient (like a car passing by or a new person joining the room unexpectedly), these muscles kind of "point" in the direction of the sound, together with my head of course.
Same!!
W wiggle
I love the infectious energy, and enthusiasm this man has. He would make an excellent teacher if he was not one already at some point.
as someone with flat feet, i can confirm how exhausting and sometimes even painful it can be to just stand up for extended periods of time
bro it makes so much sense now, it always gets super uncomfortable standing for long periods of time with flat feet. People r always asking why it bothers me and I had no idea until now lol.
The exhaustion is better than the pain. I trained myself to flex the arches when standing. And i’m skinny… less weight equals less expense of energy to contract the muscles. If the pain/exhaustion impacts your life, and your BMI is high, i’d suggest working on weight loss.
I have have high arch feet, and standing for prolong time is painful on my feet.
Could try shoe socks(or sandles) for short periods of time. Many people have flat feet due to lack of using the arches (instead of genetics) so the muscles simply atrophy. I started doing it because the mucles in my feet were so weak that my toes could slip out of their joints and it's extremly painful. Rarely happens now, and it's only been about 4 months. (ligaments take longer to get strong).
@@meshark_t Imagine having flat feet.
As a flat footed person I remember growing up thinking how much I hated hiking and walking around all day. People use say I was so lazy because I got tired with my feet killing me. It was even worse growing up because I didn't have special shoes that cushion and people didn't know I had flat feet. Its funny because as an adults its very easy to find shoe design just for this particular issue.
I too have flat feet….but never got tired of walking…. But now I have been using prescribed arches in shoe soles (since like 4th grade) and it makes walking so much easier….like I can lift my feet up more comfortably. Though one problem I have faced A LOT is that my ankles twist so fast when I walk barefoot….I am guaranteed to have a twisted ankle at least once a month…sometimes not so bad but sometimes I cannot walk straight for a week…….also it’s embarrassing to tell people you have flat feet. Also to be called “medically unfit” for like admissions in defence or that sort of things…its weird and like you got no one to blame,,,,,but still I was happy my papa put much effort into my feet as a kid…he still does:)
prescribed arches will make your issue worse in the long run, that’s why you can’t even walk barefoot without twisting them. the supports are making all the muscles involved in naturally forming your arches are atrophying, slowly becoming so weak that you can’t even walk in the most natural state of your body; barefoot.
you should be looking into minimalist shoes, flat as possible and a wide toe box at the front. slowly rehabilitate the muscles in your ankles and over time you will slowly strengthen your feet and restore them ❤
@@user-nl9gs2sq5t so I will be 19 soon and am wearing prescribed arches since I was 9….so like a decade. And you’re saying that my issues are getting worse I don’t get it??? I prefer a little heel than footwear that’s completely flat…I won’t say that my feet muscles are weak compared to other people bec I played a little bit of sports even barefoot and it was fine
Also prescribed arches are heaven sent….I feel so much better when my shoes have arches. Rest assured I have no problem wearing sandals or bellies…that do not have arches
@@nish888try doing calf raises, I had this same issue only when using any type of insert or high heeled shoe. After doing calf raises during a lifting challenge I noticed my right ankle couldn't handle as much weight as my left, my calf could but not my ankle. I started at 5 lbs, and after waiting for my joint to get stronger I was able to move up in weight every other calf raise day. It was very surprising to learn about. I've had flat feet my whole life. Plagued by plantar fasciitis with every insert. I developed sever heel pain after wearing custom orthotics for a year, then turned into plantar fasciitis, hurt even more every tkme I put the insert in. I started actually walking around my house barefoot. Barefoot for 20 minutes, roll ice for 10 and so on. No more pain, and no more inserts.
This doctor is amazing. His passion for medicine is shown through his delivery of the material. I’d watch a lecture by him any day of the week.
I love the way he speaks! He is very clear and easy to understand and keep up with, even when I'm not fully paying attention I still got what he's saying. I like how he uses different pacing/emphasis to clarify his statements.
The doctor explained it soo well. I've been trying to find a video on this topic, and this is by far the best as he explain's it in an understandable way without going into too much depth.
John 3:16 For God so loves the world that he gave his only begotten son so that whoever believes should not perish but have everlasting life.✝️
@@g4l.ballerAnd yet you provide no evidence of a sky daddy. (No one ever has.)
@@Mcfreddobecause there is so much evidence you cannot prove the evidence is incorrect
@@g4l.baller This is not your religious platform and has nothing to do with the video.
@@GamingWithKJ_YTlol oh you poor thing
What a great man. I can listen to him for ages. The last sentence he said really struck me - “the body is a culmination of our history”
Body hair isn’t vestigial. Nowadays, rather than warmth, it’s used as an extension of our ‘feel’ sense. Hair vastly increases the surface area past our body that we can perceive. Some ways this is beneficial is we can recognize foreign items or insects approaching or on our bodies that may be harmful, and identify changes in air/temp.
This is showcased in the goosebumps section: as a defense mechanism, our hairs are raised and their sensitivity is increased so they can reach out and perceive even farther, functioning as an early warning system. Under each hair has a nerve receptor tied to it under the skin for this reason. If hair were actually non-functional, the nerve receptors would not exist.
They still help keep you warm.
Not only high heels, but also modern shoes have heel drop and hard or cushioned shoes which deform our feet and make them lazy, hence our muscles never fully develop. The only things that do develop are flat feet, weak feet, bunions and hammer toes. The solution? Wearing no shoes or ‘barefoot shoes’.
I just wanted to share a little fact! Humans and chimpanzees actually have comparable amounts of hair follicles, but the hair on our body is much more fine than compared to that of a chimp, and it makes us seem like we have "less hair". We do have less by volume, but perhaps not by individually counting them. Whether or not we have more or less hair than a chimpanzee really depends on how you ask the question.
that's really interesting if true
@@navehkamai4888it's not.
@@VEE0034💀
It is true! The number of follicles is around 5 million
and if anyone wants to argue that the barely visible hair serves no purpose, know that our sense of touch is most prominent in our fingers, feet and face (where many nerve endings are), not so much across the body. If a hair, that protrudes the skin, gets bend however, that is very detectible by our sense of touch, which means you'll mostly notice a bug crawling up your leg or down you neck.
I have flat feet, and growing up I had to go to several doctors to understand the issue. My parents were more concerned than I was, and doctors said that somehow I adapted to the foot structure to walk more comfortably. The doctors said they could do a surgery, but they recommended I wait until it started to become a real hinderance in my life. I still don't feel I need the surgery, even after I ran cross country and track in high school. Still, I prefer swimming laps (I was on swim team) over running laps anyday.
I have flat feet too but I don’t understand what the problem is? IS there a problem if you have flat feet? I don’t seem to have any issues.
@@sshelgetyes in my case i have constant pain in the bottom and sides when standing up for long periods of time
I have high arches and it's a real pain. Very hard to find the perfect fitting soles so that it doesnt feel like my foot is doing the splits on flat surfaces. Even inside I wear slippers
@@sshelgetit’s bad for some of us. I can’t comfortably play soccer for more than 30 min a day or the lower muscle on my shins and tendon muscle flare up in pain
High arches are not a good thing either. I envy people with normal arches haha, I can't stand for long periods of time without my special shoe inserts. Ya gotta have that support even if you have high arches, without it, your feet can flatten.
He sounds so passionate, how adorable. I enjoyed every second of it!!! ❤
Love his passion and energy.....wish all teachers had that.
I have always found vestigial traits fascinating, this was a phenomenal video! Excellent job, I give it 10 out of 10 Goosebumps!
the ear thing... i can move my ears and I DO move my ears in reaction to sound. almost as a "maybe ill hear it better if i do this". sometimes i do it and i feel like a dog reacting to a sound lol
I have that ear thing and i have flat feet. Now i know why my feet muscle hurt after walking a long period of time. I was meant to walk on all 4's!
@@VeganSemihCyprus33 go away
@@kreizeeboi it's not too late to start ....
@@pvic6959 I recently had an ear infection in my left ear (horrible btw) that eventually slightly spread to my right ear. Because of the pain in my right ear, my brain discovered how to move the muscle and now, at 35 can move my right ear for the first time. Left is still paralyzed though 😂
Man there were multiple times in this video where I was intrigued and waiting for Dr. Jeffrey to expand on what he just said but then it abruptly cut to the next part.
Yeah, and the editing was weird. In the middle of the hair explanation, it randomly goes "we lost our hair" and then continues explaining
@@MagnesiumAddicts it repeated a clip of him at one point I believe.
@@ethanpatch6840it did lol
Bro just mentioned "sometimes people have nipples on their stomach like a dog" and then moved on
Another cool thing about body hair is that some spots dense in hair also functionally lubricate the area and prevent chafing! People who shave cleanly often may notice chafing under their armpits and around their groin because of the high joint movement at those points.
He sound like a Looney Tunes character
The moving ear thing!! I can manually control it, but I definitely noticed throughout the years of landscaping and welding, that certain noises make my neck tense up and pull my ears back a LOT, and it helps deflect the sound, rather than funnel it in.
Same!
I do this when I accidentally move a plate to lessen the sound
Interesting. My ears twitch toward the sound. I too can move mine consciously even one at a time. I like having these auricular muscles.
Well, anyone who has arms and ears can manually move ears...
So we must be genetically related
SAME! I notice I can be really expressive with my ears and move them quite a lot. I can usually pick out people who can do it too - if their ears move when they smile they can usually move just their ears if they try
My favorite vestigial muscles are the ones in the wrist that a subset of the population has - they apparently used to be used for gripping and swinging. I have these, and didn’t realize that they weren’t ubiquitous until very late in life. In high school art class, there was a project about drawing hands, and I remember being surprised that so many people just left out the muscles in the wrist and drew themselves with flat wrists. Imagine my surprise when I found out that most people _have_ flat wrists!
That's the palmaris longus muscle, and it's missing in ~15% of the population. Most people _do_ have this muscle.
@@12thDecember Yeah, I looked it up after I made this comment and realized my mistake :/ I wonder how that number might change in the future - if it’ll get higher or lower or stay about the same
@@12thDecember Now i just found out that i have this after looking it up… i thought everyone else did too.
His enthusiasm is contagious
hilariously, incredibly, fantastically educative. i want more of this gut
I remember hearing about the 3rd eyelid years ago, & I’m still kinda mad we lost. And some ethnicities can have wisdom teeth without any issue. I remember watching a dentistry video saying that indigenous South Americans (Bolivia & Peru) as well as West African & Black people with little to no European ancestry (like Haitians) usually don’t need wisdom teethed pulled because the high cheekbones & wider jawline as well as never needing braces. I’m 1/2 Bolivian & my wisdom teeth grew in normally but I decided to take them all out when I got a cavity in one of them & my dentist asked if I wanted to pull out the rest. It was my 1st & only cavity & I never needed braces
I don't know what it is worth but I saw a video that said also that because human have been mostly eating soft food they don't have to chew as much and it creates atrophy in the jaw. Chewing a lot especially growing up might grow muscles and improve jaw size, allowing for the wisdom teeth to develop better.
I'm going to experiment with my kids when I have them
@@octave38 ive also heard that the way people position their tongues is different and has a large impact on the development of the jaw. basically, youre supposed to rest your tongue so your jaw is closed and touching the roof of your mouth, and breathing only through your nose
@@james__anna_burns4885 I do this ( called mewing ) and have been doing this for as long as I can remember , no one told me about it and I thought it was normal. Its not really gave me a strong jaw, chin or anything ( which is what its supposed to do ). As long as you are not a mouth breather I really don't think that it matters all that much. The comparisons that you see for mewing are either children that are now adults or someone really exaggerating, different lighting etc. There is literally no scientific evidence to prove it helping anything at all.
Dunno. I'm white and i have all my wisdom teeth with zero issues.
Other people don't have wisdom teeth at all (congenitally)! 😅
This man is so interesting, I could listen to him talk for hours
This video is so great. The content is informative and definitely educational. More of him please 😃😃😃
For all the folks who claim God created humanity in his own image…. I present to you: humanity. Never the same, never correct, never static.
That appendix section makes SO much sense, i lost mine when i was a child and have been plagued by digestive issues ever since, resulting in 9 operations, 3 life saving, the loss of many organs and now a life full of pain! If only we had known this 30yrs ago 😢
Woah wait a minute, how many organs can you really lose and still type a youtube comment? 🤔
@@mrkiky I'm not an expert but i know you can live with just one kidney, one lung, possibly even without a heart by using an artificial one, which is basically a pump that's meant to keep you alive while waiting for a transplant
Do you like yogurt. If you hadn't done so maybe plain yogurt would help. If you did and it didn't help my fault or sumn
MANY organs?
@@buttarain27 see above list
bro at 4:29 be packing some balls, god dam he ain't scared of nothin'
Zoom lenses
@@pigeonlovehe's talking about the monkeys balls but sure thats cool too
That's a nice set of eggs but he should put them back in the basket...
I absolutely adore this man. He's like the real life counterpart to a character that would be played by Wallace Shawn.
Vestigial structures are carryovers that don't help us but don't hurt us enough to be selected against. A structure cannot just magically disappear once it becomes less useful. There are also structures that have been labeled as vestigial because their function wasn't yet understood, which is happening with the appendix. It now appears while the organ isn't completely necessary, it is beneficial. They often also still serve some purpose. For example, the remnants of the whale ischium still serves as an anchoring site for their reproductive organs. The wings of an ostrich are used in mating displays. For things like wisdom teeth and organs where losing them leaves us no worse for wear, it's often because selective pressure isn't acting on it hard enough or isn't acting on it at all in some cases and it's just up to genetic drift and random mutations to get the job done, and evolutionary change is slow.
I would love to have this level of didactics. It is accessible and universally understandable. We need more youtubers like this man.
No! you just need to read books, give time and learn! Nothig is given in youre brain whit the spoon! Doctors spend time understending it!! :P
@@rihardsbricis834 were you drunk writing this comment
@@rihardsbricis834 Rich culture for someone who can’t make the difference between studies and vulgarisation.
It's very true that the appendix is more important than people originally thought. I had an appendectomy last year and ever since then my digestion hasn't been the same.
I used to be able to snack all day with no issue, but since I had it removed I've had to wait 4-5 hours between meals to avoid horrible gas and stomach pains. I know this isn't a common issue but I have met someone else with a similar problem, they had to take probiotics 3 times a day or more to maintain normal digestion.
Similar with tonsils. They now know they play an important immunological role. Back when I was a kid, they yanked them at the drop of a hat.
@@harrywilliamson7043same. And I always wanted to have them removed like it was cool back then lol
@defaultdanceonem You're not alone at all! I've always loved spicy food and savory food, and never, ever had issues eating all kinds of food. And ever since I got my appendix removed, I was diagnosed with IBS and can barely eat anything without bloating.
this makes so much sense, I also got an appendectomy about 6 years ago
The same thing happens when you have your gallbladder removed. Unfortunately, we don't have a choice but to remove an organ if it's going to kill us.
The flat feet part is interesting thank you, I have been walking with flat feet since childhood, then suddenly in my mid 20s, I started having spams in the base of my feet, and it was only then I was diagnosed with flat feet. It was mentioned to me that my tendons were stretched as a result of over working.
Was given in soles which reduced the symptoms, but I was never able to walk normally again after. Apparently my symptoms are much more extreme than normal for this problem.
He needs to have a classroom. He’s amazing the passion I see in teaching, love it!!!
I would love to see more of Dr. Laitman, I love his energy and how engaging he is regarding the topics he speaks about!
I understand Wired didn't mean anything by it, but the editor needs to chill out on cutting him up so much. "Even in many of the monkeys" *cut* "Our ancestors" *cut* "Ears are able to move" *cut* "a bit." I'm sure your editor doesn't know this, but monkeys are not our ancestors. Monkeys and humans share a common ancestor.
sick vid. Love hearing someone passionate talk about something they know a lot about
Perfectly explained and gloriously edited.
This was an amazing video, thank you WIRED. Please bring back Dr. Laitman for more videos, he was exceptionally clear in his reasonings but also hilarious and a joy to watch.
I just recently watched a video elsewhere that contradicted the idea that flat feet are primarily genetically inherited. It mentioned that Asian, Indian, and African pediatricians reported very few cases of flat feet, especially compared to American and European doctors. Babies feet are basically all flat and arches develop through childhood. The studies suggest that children who go barefoot more often in early childhood are unlikely to have flat feet.
that still sounds genetic, if it's regional like that. did they somehow prove that european genetics are not the cause of more europeans having flat feet?
the fact that its regional just makes the idea that its genetic even more valid
Not really, it more suggests cultural differences. Anyways, while I couldn't find the video I watched, here's a link to a study that also suggests that whether or not children wear shoes often is a better indicator of flat footedness. pubmed.ncbi.nlm.nih.gov/1624509/
It means European and American children wear shoes more often.
@@Fr00steeno it doesn’t. It implies environmental differences. If you took some of those same people and placed them into Europe and America and still had the same results then you’d have genetic evidence. As you have changed their environment without seeing a change in outcome.
This here is a man that really loves what he does
Because learning and teaching is way more entertaining with that kind of people
I would straight up love to just chat with this dude for an entire day 😂 He’s fricken awesome
Oh my gosh. I've always had a raised bit of skin right before my armpit. It kind of looked like a nipple and my family would joke about it. I was insecure about it, and I've done push-ups and exercises to get rid of the pouch of fat that I thought it was! I lost 40 lbs, and that did nothing to it. Now I'm realizing it's has to actually be a third nipple!
This guy seems like such a nice guy. And well at explaining too.
I'm a flat footer and nobody else in my family is. But no issues with them at all.
same!.......... but i think my grandfather was a flat footer
@@shrutibharti_sb im the only one. As a kid my parents often got me cheap shoes and I kept on having feet injuries because of it
Now that I'm grown I just get decent quality shoes, I won't be growing out of them anyways. Never had any issues again.
Also had ingrowing toenails as a kid, that also resolved with better shoes.
When im on bare feet, the whole thing touches the ground 😂
Wow ! Fellow flat footer here😂
I too have the problem of ingrown toe nails , one solution that worked out for me was letting the nail grow and cutting it straight instead of cutting it deep while tracing the natural curve of nail. I hope that makes sense😅
@@playingindies6730 I have good arches in my feet and get ingrown toenails semi-regularly if I cut them too short. I've heard being prone to ingrown toenails/hair is also a genetic thing.
Flat foot guy here 😅
I would LOVE more of this wonderful doctor! I can tell he’s a teacher
somehow CZcams recommended me this video even though I almost never watch videos like this but it was very interesting to learn something new about the human body and I don't regret it. The way he explains is also very easy to understand. Thank you 😊
Dude, he has the energy of the eccentric science teacher in high school that made learning actually interesting and fun!
I think it’s worth noting that many of these are vestigial organs - not necessarily “useless.” As the doctor explains, they all provide some insight into our history and function and shouldn’t be negated as irrelevant or removable.
As a general rule, providing insight into the history, shouldn't be a factor when it come to considering something in our body part irrelevant or removable. It is not a museum it is a human body.
@@tamilselvan0x0 Lol, great argument
He literally says that, no need for you to say it again like it's your own knowledge
@@tamilselvan0x0 if it provides knowledge and insight on our history it's definitely not irelevant, in fact it very much is relevant. I do agree with the removable part tho.
@@tamilselvan0x0 even if you don't care about insight into our history, the example with the appendix originally being thought to be useless but now realizing that it does actually have a use is a good enough reason to not consider organs irrelevant. they could still have a function that we just haven't realized yet. as for removing organs it depends on the situation. legs aren't useless but people can still be amputated if required. it's on a case-by-case basis deciding whether the benefits outweigh the risks
This guy is freaking awesome. I really enjoy his teaching style and energy
I have flat feet and I have learned that high arch shoes with added inserts can help, and that shoes with no arch can actually lead to issues with ankles and knees
The flat feet one really validated my experience of being easily tired when walking long distances. While I know being overweight contributes a lot, I now understand that that weight also has been putting so much pressure on my flat feet which in itself is also not normal even if the person’s normal sized!
same! Also growth plate issues for me affected that, so the bone in my heel is really sensitive to pressure --> pain>
4:18 Ballin.
I could listen to this guy talk all day.
I have very flat feet and running is a nightmare. I always wondered why it was difficult and why my feet hurt a lot but it’s starting to make sense.
Doctor Jeffrey needs to start his youtube career. Brilliant performance. Loving these human biology facts. Please do more Dr!.
In my case, I noticed a few years ago that when something happens around me, like a strange noise, I automatically raise my eyebrows, widen my eyes and tense my auricular muscles. The difference in hearing between relaxed and tense is barely noticeable, but is there. Is like you can hear more clearly things that sound acute and are far away.
I'm the same, when I hear a loud sudden noise, I tense this muscle and move my ears back, I honestly can't really tell the difference but it's almost instinctual to try and limit the noise which is super interesting
I need more videos of him explaining things of our bodies!!
For the first time I didn't skip a video because it was so interesting, Amazing Video ❤️
Please bring this guy back in the future, we need more people like him explaining science!
None of these make sense under "intelligent design". They all make perfect sense evolutionarily speaking.
T. Dobzhansky put it like this: 'Nothing in Biology Makes Sense Except in the Light of Evolution'.
Well you know, they're are so many "Vestigial" Organs that proved to be useful over the years.
It's getting to the point that it's really not making sense when you see an organ you don't understand, that it must be some evilutionary leftover.
Just beacause you don't see a reason doesn't mean it doesn't exist.
We've already learned this with the apendix and the the tonsil, as well, actually.
In fact, there's a few things he says are vestigial in this vidio have been proven to have a use in recent years, such as the coxyse. (It's conected to important muscles and nerves.)
And I think more of these organs will prove to be important as we learn more.
And the male nipple explination is kind of ridiculous he must be mistaken.
These are all examples of devolution, which makes sense under the fallen worldview. Evolution needs to find examples of organs increasing in complexity, not decreasing.
How do none of these make sense under intelligent design?
@@DUNC8888high complexity means more points of failure and more energy required to operate, if you can make something more simple with the same function that's evolving not devolving.
I want more of him!!! That was fascinating ❤
That fact were great... the doc was astounding. i can listen to this dude tell me things about myself all day
Love the way this guy talks. Love his mannerisms. He seems very enthusiastic about what he teaches. Very entertaining and educational video.
One of Wired's best videos ever.
I really enjoyed this. His enthusiasm is infectious❤
i loved this doctor!!! please bring him back to teach us more
The third eyelid would be pretty useful with all the screen time these days 🤔
I was thinking that, maybe future people will develop one haha
@@renslo689 You really believe that, and what would the humans in the far future look like following your evolution theory? dinosaur?
@@CSGOMatches just 3 eye lids. That's all. Lol not that serious haha
i was in hard laugh mode when he said our ancestors monkeys these people are against God
@@vmencherikiwhat?
⬇️I tried to wiggle my ears button😅
Bro I can wiggle my ears
😂
Hehe same
I discovered I can wiggle my ears by noticing I always unconsciously flexed that muscle to keep my glasses up! I then learned how to gain control of it
I can sometimes when I hear something loud my ears move to that sound
Why edit out his explanations and not make a part 2??? Dr. Laitman is a really enthusiastic person and made this video compelling.
I loved the video,thank you very much for all the information
As someone born with arched feet but who developed flat feet over time, treasure your arches! Not having them is painful and expensive (in the USA, anyway)
Research barefoot/ minimalist shoes. Orthotics begone!
Iam a flat foot person by birth and I never did sprint much nor I am a sporty or exercising person so I don't know whether I face any issues
Really? How does this even possible?
@@koray6261 If you don't use the muscles in your feet enough, then your muscles will weaken and your arches can collapse, just like any other muscles in your body. Modern shoes don't allow our feet to move naturally, it's like wearing casts on our feet. Barefoot shoes are thin, flexible, and are foot shaped so our toes have room to move. By wearing shoes like these, we can naturally regain strength in our feet, which can also take away the pain in our joints which is caused by standing, walking, and running incorrectly because of our shoes.
@@MichaelSheaAudio oddly, the collapsed arches started when I was a kid and went everywhere barefoot anyway. My younger sister has arches so high she needs specialty shoes to support them. We always say she stole my arches!
Give me more Dr Laitman, I love this guy. He's so passionate about his field and is clearly very knowledgeable, qnd his joy is infectious and makes me want to learn more.
Very well made vidéo, very interessting topic. And made by someone thruly enjoying doing it, and sharing about. I've learned new things, and i've enjoyed the time i've spent watching this video. Thank you very much.
Dr. Laitman is a wonderful presenter. He makes a very interesting topic even better.
He sounds like Shelton’s teacher, the one that became his grandmas boyfriend!
Dr. Sturgis :)
💯
That show is pretty funny😂
You mean Wallace Shawn?
I can listen to this man teach me about human anatomy all day. So interesting.
This guy was genuinely so interesting to listen to
Goosebumps also allow your body hair to act as whiskers!
I am a school teacher, this will definitely help me. You made my next lectures much more interesting and informative.. Thank you so much..
What a great video! Thank you, Dr. Laitman, you held my attention the whole time and I learned so much! Keep 'em coming. You have a great delivery.
Such a great presenter. I hope for an encore.
After learning biology it sounds good bring back memories of lectures taught in college explained very well.
I want to thank you for genuinely being my favourite media of today, your video has held my attention perfectly. Thank you!
Grandpa here taught me a lot more than I expected. I'd love if my teachers had this motivation to teach, it really feels Dr Laitman loved talking about the body, and I'm all for it.
Great video. I like the presenter's manner, directness, and humor.
5:00 it's probably also for feeling stuff crawling on you, ive noticed when i shave my body hair i dont feel things crawling on me as easily as when i have more body hair.
this is like a teaser trailer - i want 5~10 minutes on each of these parts! more in depth please!
I remember comparing my feet to a friend's once because our wet footprints looked nothing alike, and I never actually noticed how much they can vary. He had flat feet with smaller pinky toes, while I have arched soles with longer toes. I'm guessing certain parts of the body have more variations going on? Because our hands and such didn't look nearly as different
There are 4 kinds of human feet: Roman, Celtic, Greek and Egyptian and there's a fascinating youtube video about it somewhere. (I have Greek feet, my mom has 1 Roman and 1 Celtic lol)
Oops, I forgot Germanic. The name of the video is Foot Shape Ancestry.
@@rachelraccoon5565 there are actually more. It's indeed a complete spectrum of variations that can manifest randomly combined in any individual. That thing of the four shapes is like horoscope, or phrenology. Just CZcams B-Tier material.
@@rachelraccoon5565 do you think that aboriginal people in Melanesia have, for instance, a 'Roman' or 'Egyptian' foot shape? Or a Greek one? Or a Celtic?
I thought so.
@@fL0p "I thought so"? Wtf Like you got me or something? lol Good job flop, you got me. Clearly I know nothing about aboriginal feet in Melanesia and I should therefore go kill myself. lol
Please get this guy his own show. He is interesting and easy to understand
Helpful and clear video, thank you!