Your body is millions of years old ... the oxygen, carbon, nitrogen, hydrogen, and other atoms that make up your molecules, that make up your proteins, that make up your cells and tissues and organs and you - they are all Very VERY old... Exploded star stuff - much of your body is made up of elements even older than the Earth itself...
Only the upper layer of skin (the epidermis) cycles that fast. The lower level (the dermis) is also damaged when we get cut. In response, our skin produces special scar collagen (a protein that exists outside of the cells). Those structures don't get replaced over time.
This video reminded me of a pretty profound quote I'd heard once, so much that I actually went and looked it up. It's by a guy called Phil Hellenes. Here it is: "The body of a newborn baby is as old as the cosmos. The form is new and unique, but the materials are 13.7 billion years old, processed by nuclear fusion in stars, fashioned by electromagnetism. Cold words for amazing processes. And that baby was you. Is you. You’re amazing. Not only alive, but with a mind. What fool would exchange this for every winning lottery ticket ever drawn?"
I watch science videos almost every day and this one really broke my mind. Lovely animations and brilliant choice of sound effects guys! Keep it up. I subscribed and will probably stick around for a while :)
Darn, I'm 5 years late... But hello, hello! But to respond to you - after I had already shed some tears towards the end, I went through the comment section to see if anyone made any comments revolving around the idea of crying. It was the music towards the end, along with knowing the lens of our eyes haven't changed since we have formed in our mother's wombs.
I just had cataract surgery. I have new lenses and an upgrade via iLasik so my vision is the best I've ever had. But now I'm sad about saying goodbye to my old lenses, yellowed as they were...
Nice to see you, Adam! Here is a question that's related to this video: If you get a scar on your skin when you are little, why does it persist into adulthood, even though all the cells are replaced so many times? Happy Holidays from The Gulleruds!
I concur with other commenters - what an amazing science channel! :) Can mine grow up to be like this one pretty please? :p In all seriousness - loving the graphics - they are incredibly unique and compelling, and presentation is spot on. :) So happy to have stumbled upon this video - I have a new favourite channel!
2:10 if the connections of the neurons where the memory is stored constantly changes, is that a danger? Does it have anything to do with for example alzheimer or amnesia if they connect wrong?
It's not a danger exactly - it's just how our brain works. There's a lot of research that shows we alter our own memories - we might add details, or even completely invent fake memories. And we BELIEVE they are true. At the cellular level, that editing of memory takes the form of new and changing connections between neurons. And it's all part of the normal function of a healthy brain. It doesn't pose a threat to our health, but you can imagine how it might cause arguments, or more seriously, call into question court testimony. Alzheimer's disease and amnesia are brain malfunctions - not neurons changing their connections, but the actual death or deterioration of neurons. Want to learn more about this (and its implications)? I'd recommend this Radiolab episode about memory: www.radiolab.org/story/91569-memory-and-forgetting/ And this little video: ua-cam.com/video/PxQ9Gx2-ceM/v-deo.html Or this NYT piece: www.nytimes.com/2008/06/27/opinion/27aamodt.html?_r=0
I thought about including those! But the part that sticks around (enamel) doesn't actually get built until well after birth - in the case of some teeth, many years after birth. So they can't be said to last our entire lives. Still, one of the few parts of us that doesn't really turn over.
Thanks for the quick reply. From Wikipedia: "Human enamel forms at a rate of around 4 μm per day, beginning at the future location of cusps, around the third or fourth month of pregnancy." And "By the end of this stage, the enamel has completed its mineralization." (I believe this refers to an in utero process). Wikipedia has references for these statements.
I'm pretty sure that refers to the baby teeth - the initial calcification step referenced in the table earlier up in the article. My understanding is that a pretty similar process occurs for permanent teeth, just a little later. Their basic structure starts to form during pregnancy, but the enamel itself isn't built until after birth. Check out this handy chart from the American Academy of Pediatric Dentistry: www.aapd.org/media/policies_guidelines/rs_dentgrowthanddev.pdf
Good question! There's kind of a theme here - cells that get a lot of exposure and wear and tear regenerate a lot - like your skin and your stomach lining. Your lungs are similar - the parts that are constantly in contact with the air regenerate every 8 days. Structural parts of the lungs take longer.
Which is how sharks and whales can be so accurately measured for age. It is a fairly straightforward method to determine using light the amount of protein degeneration in the lens of long lived animals. Sharks, maybe 500 years. Whales, more than 200 years. Remember when we used to think the Galapagos tortoise was the oldest living animal? Nope, about 150 years tops.
Your body is busy replacing much of itself over your lifetime. Like a house always under construction and renovation. In order to optimally facilitate the rebuilding you need to provide the body with building materials. Nutrients are those building materials! Most people are lacking key nutrients in sufficient supply. The usual culprits are involved. Not enough sleep or exercise, not enough water on a chronic basis. Also exposure to everyday toxins in our food, clothing, homes, wi-fi radiation, as well as stress. Due to our lifestyles we need to do even more to counteract the negative impact we afflict ourselves with if we want to rebuild well into healthy old age. Remember that by the time symptoms happen the problem has been building for quite some time. Be proactive, not reactive!
Hey, if our bodies are constantly being replaced, why is it that a soldier who loses a limb in battle does not, after a certain amount of time passes, discover that his missing limb has been "replaced" as per his original DNA blueprints?
Might sound weird but I cried cause I never liked my body for what it was cause I'm too skinny and till I found this it made me realize I might not stay that way for ever my body changes but my heart eyes and brain don't meaning I'm stil able to think have a heart beat and look at the world differently and not focusing on how I look when everything is changing
Verum Ingenii cringy i don't care cause of this i cut but ehh what is it to life people just have negative comments we have sharing that change live so end life so what i said might be cringy but some have the same idea
I've been wondering this for about 40 years. Also, if I eat lots of banana from Chile every day, how much of me is from Chile? And, Will I be deported?
But arn't many of the atoms we carry around in our bodies as old as the universe? So even though our build-up is refreshed, the stuff that it's made of, is a lot older.
That's right - our atoms are really old - some may not be quite as old as the universe, but they are most likely older than our sun. Those atoms cycle in and out of our bodies pretty rapidly. It's all about the scale you are observing. Atoms are ancient - the structures they make up are fleeting.
Hi, I am from Turkey and i really imressed verymuch from your video. I want to add a subtitle for Turkish people, for my collegues etc. How can i perform this? Can you let me to add a Turkish subtitle?
Hi Yusuf - that would be great! I just enabled community contributions for subtitles. Just click the gear icon in the lower right and you should be able to select Subtitles/CC > Add subtitles or CC.
Surprised that nothing was said of tooth enamel, or that certain bones (Scaphoid, patella...) have very poor blood supplies, and are therefore not part of that new skeleton every year.
well matter is never created nor destroyed, and the universe along with all matter that came with it is about 13.7 billion years old. so it's pretty old
Great video Skunk Bear my mom heard about your channel on the radio and so we checked it out we love your channel and were wondering why don't humans ride zebras or ostriches. Thanks
My body is 20 years old. The cells that make up my body are younger but the atoms that make up my cells are almost as old as the universe?
Ya nailed it - it's all a question of scale
@@skunkbear I am no scientist, but I expect the splitting or decay of all original atoms in your body is possible, just incredibly unlikely?
Your body is millions of years old ... the oxygen, carbon, nitrogen, hydrogen, and other atoms that make up your molecules, that make up your proteins, that make up your cells and tissues and organs and you - they are all Very VERY old... Exploded star stuff - much of your body is made up of elements even older than the Earth itself...
@@skunkbear Already Subbed!!!
thats deep!!
Wow dude that is some top tier animation.
Akainu OPTC no
@@jackgaming5360 Yes?
Why do we still have scars if we have new skin every so often?
Only the upper layer of skin (the epidermis) cycles that fast. The lower level (the dermis) is also damaged when we get cut. In response, our skin produces special scar collagen (a protein that exists outside of the cells). Those structures don't get replaced over time.
Thanks!
Therefore the laser treatment for scars are scam?
@@prophet1388 kind of
This video reminded me of a pretty profound quote I'd heard once, so much that I actually went and looked it up. It's by a guy called Phil Hellenes. Here it is:
"The body of a newborn baby is as old as the cosmos. The form is new and unique, but the materials are 13.7 billion years old, processed by nuclear fusion in stars, fashioned by electromagnetism. Cold words for amazing processes. And that baby was you. Is you. You’re amazing. Not only alive, but with a mind. What fool would exchange this for every winning lottery ticket ever drawn?"
Lovely video, wondering why you have so little subscribers.
Thanks so much - tell your friends!
people don't like skunks.
You guys are trending
+Skunk Bear: Science From NPR I subscribed and I will tell my friends :)
There are some questions even skunk bear can't answer
I watch science videos almost every day and this one really broke my mind. Lovely animations and brilliant choice of sound effects guys! Keep it up. I subscribed and will probably stick around for a while :)
Wow...
Animation and sound editing level of your videos should be nominated for oscar
This is absolutely amazing, I'm a visual learner and this was fantastic! Great work
쿵 쿵 쿵 안녕 친구
This was oddly beautiful that I almost shed a few tears :)
I'm sure they'd replace easily!
Darn, I'm 5 years late... But hello, hello! But to respond to you - after I had already shed some tears towards the end, I went through the comment section to see if anyone made any comments revolving around the idea of crying. It was the music towards the end, along with knowing the lens of our eyes haven't changed since we have formed in our mother's wombs.
I just had cataract surgery. I have new lenses and an upgrade via iLasik so my vision is the best I've ever had.
But now I'm sad about saying goodbye to my old lenses, yellowed as they were...
The nail clipping clip 0:39 was for some reason satisfying to watch.. Yeah I'm weird.
OH MY GOD, the Top tier animation and adaptative music are too great
I have some quality binge watching to do
Nice to see you, Adam! Here is a question that's related to this video: If you get a scar on your skin when you are little, why does it persist into adulthood, even though all the cells are replaced so many times? Happy Holidays from The Gulleruds!
Renewal requires blood flow and living cells. My understanding (and I may be wrong) is that scar tissue has neither.
Why the heck aren't you guys more popular!?
I did so like the part of the forming of the lens. Wonderful music combined with wonderful storytelling.
Please more videos, your sensibility to create videos is very special
3 years later and this still my favourite video on the internet
Of course personality changes over time! That is the beauty of being human!
This man is my nerd crush.
Oh, and since I haven't made things super awkward or anything: Thanks for another great video!
same...same
Absolutely beautiful, how come you don't have millions of subscribers? I have no idea...
Woohoo! Exactly what I was thinking too.
Your voice is so calming great video btw!
This made me emotional. The eye part more
same!!!
really good one but TOO LOUD MUSIC
I concur with other commenters - what an amazing science channel! :) Can mine grow up to be like this one pretty please? :p
In all seriousness - loving the graphics - they are incredibly unique and compelling, and presentation is spot on. :) So happy to have stumbled upon this video - I have a new favourite channel!
Blood cell: is born
Body: You have 4 months to live
In my opinion, for some reason, it went all emotional at the start of 2:22 and over.
What's the name of the song that is used in this video? I've been trying to find this song for a long time.
So great to see Garth's kid is on you tube... I wonder where Wayne and Casandra's kid is????
Anybody else kinda get chills about the eye thing?
Editing software he uses? I love his animations :D
2:10 if the connections of the neurons where the memory is stored constantly changes, is that a danger? Does it have anything to do with for example alzheimer or amnesia if they connect wrong?
It's not a danger exactly - it's just how our brain works. There's a lot of research that shows we alter our own memories - we might add details, or even completely invent fake memories. And we BELIEVE they are true. At the cellular level, that editing of memory takes the form of new and changing connections between neurons. And it's all part of the normal function of a healthy brain. It doesn't pose a threat to our health, but you can imagine how it might cause arguments, or more seriously, call into question court testimony.
Alzheimer's disease and amnesia are brain malfunctions - not neurons changing their connections, but the actual death or deterioration of neurons.
Want to learn more about this (and its implications)? I'd recommend this Radiolab episode about memory: www.radiolab.org/story/91569-memory-and-forgetting/
And this little video: ua-cam.com/video/PxQ9Gx2-ceM/v-deo.html
Or this NYT piece: www.nytimes.com/2008/06/27/opinion/27aamodt.html?_r=0
Interesting :) thank you for answering!
Our permanent teeth are actually the parts that last longest (even past death).
I thought about including those! But the part that sticks around (enamel) doesn't actually get built until well after birth - in the case of some teeth, many years after birth. So they can't be said to last our entire lives. Still, one of the few parts of us that doesn't really turn over.
Thanks for the quick reply. From Wikipedia: "Human enamel forms at a rate of around 4 μm per day, beginning at the future location of cusps, around the third or fourth month of pregnancy." And "By the end of this stage, the enamel has completed its mineralization." (I believe this refers to an in utero process). Wikipedia has references for these statements.
I'm pretty sure that refers to the baby teeth - the initial calcification step referenced in the table earlier up in the article. My understanding is that a pretty similar process occurs for permanent teeth, just a little later. Their basic structure starts to form during pregnancy, but the enamel itself isn't built until after birth. Check out this handy chart from the American Academy of Pediatric Dentistry: www.aapd.org/media/policies_guidelines/rs_dentgrowthanddev.pdf
Yeah, looks like there is some presence of first molar permanent teeth at birth, but others develop later.
Question:¿How does our body know when to change?
great video. why have I never heard if u guys before?
Oh my god. Why i just see this video? This is so good i wilk keep supporting your channel
How is this over??? I love it!
I have subscribed and I will tell about you guys to others as well! :) Channels like this are rare. Stay that way ;)
Really astonished by your work and would like to get your help for developing my own UA-cam channel. How u make such videos????? Plz reply
This is an excellent video! Could you tell me please what that beautiful violin track is? Thank you
Acabei de descobrir o canal e estou adorando. Conteúdo incrível, parabéns!
This is wonderful!
Can you PLEASE add captions for hearing-impaired fans?
Oops. Found 'em! :)
Do lung cells regenerate as well?
Good question! There's kind of a theme here - cells that get a lot of exposure and wear and tear regenerate a lot - like your skin and your stomach lining. Your lungs are similar - the parts that are constantly in contact with the air regenerate every 8 days. Structural parts of the lungs take longer.
Wow u explained things beautifully. Wish my teachers in school did half as much .
If someone lost a lot of weight, after 10 years, would their skeleton regenerate for a smaller framed person?
This music is oddly... depressing? I dunno just find this music tear jerky.
My new cells decided to look a wee bit older than my old cells. Yaaah!
Got sent here by VOX
me too man
AvgJane19 yeee my dad sent me from the radio...why
The animation is wonderful. Would you please share the contact information for who created it? :)
That was me (Adam Cole) - connect with me on Twitter (@nprskunkbear) and I'll DM contact info
this reminds me so much of the magic school bus -- i love it!
Great video! glad i found this channel
Lulu is _the shit._
Thanks for the heads up about season 2 of *ɪNVISɪBɪLɪA* !!!!
Which is how sharks and whales can be so accurately measured for age. It is a fairly straightforward method to determine using light the amount of protein degeneration in the lens of long lived animals. Sharks, maybe 500 years. Whales, more than 200 years. Remember when we used to think the Galapagos tortoise was the oldest living animal? Nope, about 150 years tops.
awesome video! super interesting, thank you!
Wait if hair is repaced in 7 years, how does people make records and grow hair so long that it touches ground?
Not all of it falls out at once so even if one very old long hair falls out there are many others and a new one starts to grow.
TIME IS A TOOL YOU CAN PUT ON YOUR WALL, OR WEAR IT ON YOUR WRIST-
THE PAST US FAR FROM US , THE FUTURE DOESN'T EXIST
JPereyra98 holly-
WHAT'S THE TIME? IT'S QUARTER TO NINE, TIME TO HAVE A BATH
Murillo Medeiros WHAT DO YOU MEAN, WE'RE ALREADY CLEAN!
Scrub, scrub, scrub 'til the water is BROWN.
Animation!explanation!!!top tier!!!!cant ask for more sir!!👍🏻👍🏻👍🏻❤️❤️❤️
Somehow this made me cry
Adam Cole, can you please make at least one more video for your cadamole chanel?
Please
Maybe it's because our eyes don't change that people associate the look of your eye with yourself.
Very nice channel dude. Please do videos with meiosis and mitosis😊 thanks so much.
Ps new subscriber here!
Your body is busy replacing much of itself over your lifetime. Like a house always under construction and renovation. In order to optimally facilitate the rebuilding you need to provide the body with building materials. Nutrients are those building materials! Most people are lacking key nutrients in sufficient supply. The usual culprits are involved. Not enough sleep or exercise, not enough water on a chronic basis. Also exposure to everyday toxins in our food, clothing, homes, wi-fi radiation, as well as stress. Due to our lifestyles we need to do even more to counteract the negative impact we afflict ourselves with if we want to rebuild well into healthy old age.
Remember that by the time symptoms happen the problem has been building for quite some time. Be proactive, not reactive!
Astonishing video! Thanks for make easy understand this tough things. ;)
I came from Vox and I love this channel now!
What a beautiful video. Such aesthetics.
One of my favourite videos I've ever seen
Hey, if our bodies are constantly being replaced, why is it that a soldier who loses a limb in battle does not, after a certain amount of time passes, discover that his missing limb has been "replaced" as per his original DNA blueprints?
what a amazing video
subscribed and turnedon notification on my devices please don't let me down.
Beautifully told.
Pretty kewl video man, you got one more subscriber. Oh you should thank the guys at vox cause they've recommended you.
Which eye?
These videos are awesome, I'm glad i found it
Glad that Ted Ed shared your video, now I am officially subscribed! Wonderful channel 👏
You need more subs!!! how do you make these awesome animations!!!!!?????
After Effects, my friend!
Thanks!!
Might sound weird but I cried cause I never liked my body for what it was cause I'm too skinny and till I found this it made me realize I might not stay that way for ever my body changes but my heart eyes and brain don't meaning I'm stil able to think have a heart beat and look at the world differently and not focusing on how I look when everything is changing
H20 MY GOD cringe BECOME SELF AWARE TO HOW CRINGY YOU SOUND THEN YOUR LIFE WILL GET BETTER
Verum Ingenii cringy i don't care cause of this i cut but ehh what is it to life people just have negative comments we have sharing that change live so end life so what i said might be cringy but some have the same idea
H20 MY GOD why the hell do people cut you guys are idiots there is literally no reason to cut
Really makes you think! Great video
My question is "HOW DOES THE CALCULATOR WORKS? "
Jayesh Verma, India
...so why people need lense or glasses after hitting puberty? is there a link between those two?
Subscribed. This video was amazing!
I've been wondering this for about 40 years. Also, if I eat lots of banana from Chile every day, how much of me is from Chile? And, Will I be deported?
GREAT VIDEO!
Hi Skunk Bear great video I was wondering why men usually snore more then women.
But arn't many of the atoms we carry around in our bodies as old as the universe? So even though our build-up is refreshed, the stuff that it's made of, is a lot older.
That's right - our atoms are really old - some may not be quite as old as the universe, but they are most likely older than our sun. Those atoms cycle in and out of our bodies pretty rapidly. It's all about the scale you are observing. Atoms are ancient - the structures they make up are fleeting.
Hi, I am from Turkey and i really imressed verymuch from your video. I want to add a subtitle for Turkish people, for my collegues etc. How can i perform this? Can you let me to add a Turkish subtitle?
Hi Yusuf - that would be great! I just enabled community contributions for subtitles. Just click the gear icon in the lower right and you should be able to select Subtitles/CC > Add subtitles or CC.
Dude u are my new hero
Surprised that nothing was said of tooth enamel, or that certain bones (Scaphoid, patella...) have very poor blood supplies, and are therefore not part of that new skeleton every year.
You and Crispin Pierce are on the same page!
well matter is never created nor destroyed, and the universe along with all matter that came with it is about 13.7 billion years old. so it's pretty old
why did you guys name the channel skunkbear
Wonderful video!
My muscles barely got replaced :/
Thanks.for the info.
Does this mean that mildly radioactive snacks are okay again?
I think sugar bombs are okay
44k subscribers ? WHY SO LOW ?
I sub u for the great videos u got. Thank u for sharing this knowledge in a easy and fun way to undunstand.
Great video Skunk Bear my mom heard about your channel on the radio and so we checked it out we love your channel and were wondering why don't humans ride zebras or ostriches. Thanks
Or giraffes
in our body ,working of organs should require o2 blood ,but for working of hart & lungs we need it?
Why are planets usually spheres?
What about tattoos how are they regenerated ?
Great video!
My body is technically 13.8 billion years old, because at least one of my body's subatomic particles was around since the Big Bang.