Did you know that you are made of trillions of cells,
but only around two hundred different types?
For example, the cells inside your cheek are made up of
stratified squamous epithelium cells,
designed to handle constant operations.
These types of cells are not only in your cheeks,
but also in your vagina and anus as well.
嗨大家好 我是克里斯丁·斯黛珂 这里是Asapscience
Hey guys, I’m Christine Sydelko and I’m here with Asapscience.
我们要说的是 为什么你的身体如此奇妙 而我的更奇妙
And we’re talking about why your body is amazing and mine is amazinger.
F**k you Jessica.
When you were an embryo, the first opening that developed was your anus.
That’s right, you were once just a butthole.
意思是 你是个后口动物 跟海胆一样
That means you are a deuterostome, and so is a sea urchin.
Christine, how much gas do you think exists your anus in one day?
Yeah you’d like to know that, pervert!
Science says that today, about half a liter of gas was exist your anus.
And I say that, too.
I just said it, because it was written.
That was my line.
If this feels like too much,
don’t worry, as your brian already does a pretty good job of sensoring content,
like your nose.
Your nose is in your field of vision
and each eye sees the nose in a different position.
The region that is blocked by the nose for one eye is visible for the other eye,
and the brain constructs a unified image
and therefore you ignore your nose.
But your nose is so powerful.
In fact if you convert your nose receptor neurons into binary code.
It’s the equivalent of 46 petabytes.
That’s more information than every movie ever made up to 2017.
Convert all the cells in your body,
and it would add up to 91.44 zettabytes
or 10 to the 21 bytes.
Scientists have hypothesized that during pregnancy you give some cells to your mom.
I just gave her attitude.
This process is called fetal maternal mar… marchin…
I think I… I got it.
This process is called fetal maternal micromar… carneses.
Scientists have found fetal cells in various maternal tissues that can persist for decades.
The reasons for this is unclear,
but one hypothesis is that the baby is trying to increase his chances of survival.
When your heart stops, your brain actually knows that you’re dead.
A study that investigated individuals who were pronounced dead but later resuscitate,
they found that 46% had memories of the event,
2% could even recall seeing and hearing actual events
that could be cooperated with hospital doctors and nurses.
These findings are further supported by a study of rats
whose hearts had stopped and were declared dead.
However, the rats were experiencing a surge of brain waves
in the period after their hearts had flat lined.
Your dog is running towards a busy street of traffic!
Your plane back from Amsterdam just fell 200000 ft in the air!
I… Are we in the earth crust?
No! No! No! Ahhhhh!
Now that I am stressed, my body sees it as a risk,
causing my blood to thicken, just like my sweet sweet *ss.
当你实际受伤时 情况类似 这是为了防止血液流失
It’s similar to when you are physically injured to prevent blood loss.
But if you do actually get cut,
the injury has a better chance of healing during the daytime.
Our skin has cells called fibroblast.
If you scratch these cells filled the void
and allow for new skin to grow.
Scientists have discovered that these cells have their own circadian rhythm,
and act much more quickly during the day.
In fact, those who suffered a night-time burn
took an average of eleven days longer to heal.
Many people have been told that the tongue is the strongest muscle in the body.
But this is wrong!
It’s wrong! And I won’t stand for it!
First of all, your tongue is not a single muscle,
but actually a conglomerate of eight muscles, forming a muscle system.
In actuality, the muscles have the most brute force are
quadriceps on the front of your thighs
and the gluteus maximus in the rear.
What other lies have you been told?
Though scientists can’t agree on how many,
they do agree that there are more than five,
like proprioception which is our ability to precieve body and limb position.
It’s why you can close your eyes and touch your nose,
or switch between the gas and break pedal without looking.
Or nociception, our ability to percieve pain or harmful stimuli.
Every morning, you are about 1.5 to 2cm taller than at night.
The pressure of the day, walking, running and general living
causes compression in the cartilage in your spine and joints,
and when we go to sleep at night, the pressure eases.
Alright, thank you so much for this.
我们爱你 听起来很有趣 很奇妙 就传播科学这样
We love you. Sounds hilarious, sounds amazing. Just seminating science.
– 你想让他们去看看你的克里斯丁频道吗？- 不要
-Do you want them to check out Christine’s channel?-Don’t.
– 对 不要 这听起来不怎么……
-Yes, don’t. That sounds isn’t about, but…
Ooh! Psychology! Our coming video!
Did you enjoy it for teaching some science today?
喜欢 不过要澄清一点 我大一生物成绩是D
Yes, just a disclaimer, I got a D in freshman biology.
Do not trust anything I said, and have a great day.
– 好的 下期见- 拜
-Alright, see you later.-Bye!