Don't believe me.

Fine.

This is going to be a very short video.

Wait a minute.

Wait a minute.

What if I told you there was an organ in the body we didn't know about?

Until 2019.

How did that happen?

Well, here's some other incredible things about us.

The microcosm.

Brushing your teeth isn't always good.

If you do it too vigorously, you can remove your enamel.

They're ons do recover and they actually do it quite fast up to five millimeters per day.

As long as the cell therein is intact.

You can be proud of your chin because there's no other animal that has it on Lee humans.

D'oh!

You don't like the sound of your own voice on record because you're used to hearing it differently.

Inside your head, the walls of your skull change your voice for you.

You blink over 15,000 times a day and the muscle in your island is the fastest in your body.

Your fingernails grow faster on your dominant hand.

Also during the summer and on sunny days in the winter.

Not so much.

All the bones in your body will be completely renewed in 10 years time.

It's a whole new you.

You have more in common with a banana than you think.

Human share 60% of their DNA with this fruit body fat transforms into seo, too, and water, which basically means you're exhaling it.

There's also enough of this stuff in you to make about seven bars of soap fight club.

Anyone.

The only part of your body that doesn't get any blood is the cornea of the eye.

It receives oxygen directly from the air.

You have almost 100 more bones as a child than as an adult.

As you grow some bones fused together, nobody actually knows how many muscles you need to smile or frown, even Maur.

Some people have 40% fewer facial muscles than the rest.

Every year, the average person sheds about £6 of skin.

Hopefully not all at once.

Taste buds in your mouth aren't visible.

Toe a naked eye.

Those bumps on your tongue are called papillon, and taste buds are on their top.

By the way, the buds themselves only live for 10 to 14 days and then get replaced.

Kind of like interns.

Skin on your fingertips gets all wrinkled for you to get a better grip underwater.

But scientists haven't yet figured out why women do seem or color variations than man.

On average, they can see about 3 to 4 times more shades.

Breathing and blinking are the only process is that you do automatically but still can control.

You've started noticing yourself doing both right now, haven't you?

There's an organ that was on Lee discovered in 2019.

It's called the Interstitial, and it's aligning between other organs and muscles.

You might want to write that down.

There will be a quiz later.

We might lose our toes in the process of evolution.

Originally, our ancestors needed them to climb trees, and they were much longer.

Now we almost don't use them at all.

Pain is unnecessary reaction.

Sorry, since it helps us understand something's wrong with us.

If there was no pain, we wouldn't be able to diagnose many diseases, and they couldn't sell this aspirin.

Lint inside your belly button collects there because there are hair's grown specifically to catch it.

Really.

Deliver is the Onley organ of the body that can regrow itself to its original size, even if a tiny fraction of it is left on Lee, your head is prone to alopecia or balding.

That's why hair is usually transplanted from other areas of your body.

There is no relax position of the tongue in the mouth.

It's always strange, but it never gets tired.

Although it's a muscle stretching much like yawning increases blood flow to the muscles and also releases endorphins.

This makes you feel good and wake up, by the way.

Fun fact.

Endorphins are not marine mammals.

Those are in dolphins.

Speaking of yawning, it helps you grab more oxygen from the air.

When your brain is tired and needs a push like right, though men only yawns are contagious.

By the way, when you see someone vigorously scratching, you start to itch yourself.

Scratching helps because it sends a pain signal to your brain, which diverts his attention from the edge.

Your foot is the same length as your forearm, wrist elbow.

Check it out.

You're also shining a little bit.

Your light is so weak, though, that you can't see it in space.

Your body grows a little taller.

There's no gravity, so your spine relaxes.

You also grow older.

The faster the higher up in the sky you are tickling is unpleasant to many people, but they still laugh because it's an involuntary reflex.

They can even be in pain but won't stop laughing tickle responsibly.

The biggest bone in the human body is a thigh bone, while the smallest is a stirrup.

It's in the middle ear, and it's only 1/10 of an inch Insides way.

Can't remember our childhood because our memory continues to develop until teenage years before that, there's too much unknown in our lives to remember everything properly.

We blush because of an adrenaline rush.

What's more, the lining of our stomach becomes red.

To check it out, swallow a GoPro and see No, don't do that.

The exact reason why we have fingerprints is still unknown in my before improving the sense of touch, though I think it just gives the FBI something to d'oh, even if they're completely erased.

For some reason, fingerprints eventually restore their pattern.

Now you can smell upto a trillion different smells, but there are people who can't smell them at all.

It's a condition called and Naz mia, your nose and years are the Onley parts of your body that never stopped growing?

Yeah, nails And here aren't body parts because they don't grow like arms and legs, and they're made of the same material called carrot.

There's no smart reason behind wisdom teeth appearing in your mouth, and in some people they never even grow.

Your memory can store about four terabytes of data, which is probably why some of your less important memories air lost to make way for new and Maur important ones.

Most of the time, the air you breathe through your nose passes through on Lee one nostril.

It changes once in a while.

You can live without one of any paired organ or body part like eyes, arms, legs or even kidneys and lungs.

There are conditions in which you have to have your whole stomach removed.

You can still live and eat normal food after that, if you smooth out the brain, it will be the size of a pillowcase.

Moving your ears is an ability that proves evolution.

Our ancestors use it to locate enemies and pray just like other animals.

D'oh!

Only 30% of those capable of moving years by the way are able to move on.

Lee won.

Blood in your body travels the distance around the earth.

In just two days, you spend about 1/3 of your life asleep.

Your cat, though, spends about 75% of its life napping.

All in all, your eyes are closed for almost 40% of your life.

That includes not only sleeping but blinking to, which accounts for 10% of waking hours.

If you're really, really starved, your stomach will start munching on its own walls and your brain, too.

You feel dehydrated when you lose about 1% of your body moisture.

Ah, 5% loss can cause you to faint.

Small intestine is, in fact, four times as long as the large one.

It's 20 feet versus five feet.

You become up to an inch shorter by night than you were in the morning as because your spine stretches at night, but gravity pushes it down during the day.

Although it's really hard, it's possible to sneeze with your eyes open.

Now.

You can't swallow food and breathe at the same time, but babies can.

You're paired.

Organs aren't symmetrical with each other.

Your right kidney is lower than the left, and the lungs are different in size and shape.

Contrary to the widespread myth, we use 100% of our brain, just not all the time.

Your hands would be half a strong if not for the pinkies.

Enamel on your teeth is not white.

It's transparent and slightly bluish.

Dentyne, which is the layer right beneath the enamel, is not white, either.

It's yellow.

Your eyes don't register a continuous image like a video.

They take a nonstop Siri's of separate pictures that your brain smooths out into one.

On average, your body weight consists not only of your own way but also that of bacteria living on an inside your body.

They can take up to £5 so that's £14.

If you add in the skin you flake off during the year.

Although the Marine takes up just 2% of your overall body weight, it consumes about 20% of all the energy you gain.

You feel sick on a roller coaster because your brain thinks it's being poisoned.

The reason is all the dizziness well, yeah, there are people who don't smell bad when they sweat.

That's because they have much fewer skin bacteria, which are exactly the reason for the odor.

When you scream, your brain turns down the volume for you on its own.

Otherwise you might go death.

When you're full, you relax and want to sleep because of the hormone serotonin.

It's a predatory thing we've inherited from our ancestors.

Endorphin not end Dolphin, otherwise known as the happiness hormone, is released every time you sneeze.

Your brain sometimes makes mistakes, too, but there are neuron is that.

Catch those and send proper signals to your body instead.

You can't tickle yourself, but not in a way that makes you laugh.

There's a tickling sensation when a bug crawls across your skin, you can imitate that feeling for yourself.

You can always see your nose with your peripheral vision.

You just choose not to notice it well.

Metals dissolved in stomach acid.

If you swallow a coin, it's on point.

Don't worry.

Sense of smell takes active part in feeling state.

If you can't smell your taste is also affected.

If your fingertips were the size of our planet, you'd have some really big hands, and those fingertips would be able to feel separate buildings and even cars.

What you see is a bit obsolete already.

Thean Midge, before your eyes is sent to your brain and processed before you see it, this process takes about 60 milliseconds.

You're more likely to catch a cold if you breathe through your mouth.

Your nose filters out most of the particles in the air and also warms the air itself.

Your fingertips, ear structure, tongue print and brain are unique.

There are none out there like yours.

Your brain can feed a lightbulb with the electricity it produces in the awakened state.

It on Lee be able to digest grass if you had an additional stomach or two like cows.

D'oh!

Well, good thing we don't.

There are between 100 million and one billion bacteria living on each of your teeth.