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  • Quick question: do you think you know everything about your own body?

  • Are you sure?

  • How about the fact that 25% of an adult's bones are in their feet?

  • Or that taste buds aren't actually those bumps on your tongue?

  • Well, get ready for some eye-openers!

  • Ouch!

  • No, were really not going to open up someone’s eyeswe don’t do surgery here on the Bright

  • Side.

  • At least for now.

  • Here we go.

  • 1.

  • Your stomach gets a new lining every 3 to 4 days!

  • This way, your body prevents the stomach from digesting itself!

  • 2.

  • Your brain contains more than 86 billion nerve cells which are joined with one another by

  • 100 trillion connections!

  • That's many more than the number of stars in our home Milky Way Galaxy!

  • 3.

  • By the way, if you decided to count all those numerous nerve cells in your brain, it would

  • take you up to 3,000 years.

  • 4.

  • Your fingernails grow faster on your dominant hand - in other words, if you write with your

  • right hand, you'll have to trim those nails more often.

  • Your fingernails also grow faster in the summer and during the day.

  • 5.

  • When your brain sends messages to different parts of your body, the signals travel along

  • your nerves at a speed of up to 270 mph!

  • It's way faster than a sports car!

  • 6.

  • People spend more than 4 years of their lives eating.

  • Wow is the restaurant service that slow?

  • Hey just kidding.

  • 7.

  • The fastest muscles in your body are those that make your eyes blink.

  • Their contraction speed is one blink in less than one-hundredth of a second!

  • In a day, you can blink more than 15,000 times!

  • 8.

  • In their lifetime, the average person processes more than 100,000 pounds of food - that's

  • more than the weight of 7 elephants combined!

  • And how do you eat an elephant?

  • Yep, one bite at a time

  • 9.

  • If someone decided to uncoil the human DNA, the whole thing would stretch for 10 billion

  • miles, which is 40,000 times more than the distance between Earth and the Moon!

  • 10.

  • If you don't have insomnia, you're likely to spend around one-third of your life asleep.

  • But there are creatures that sleep even more: for example, for a dog, this time is 44% of

  • their life, and for a python - 75%.

  • 11.

  • During just one day, all the blood in your body travels more than 12,000 miles.

  • That's half as long as the distance around Earth!

  • 12.

  • Your skeleton will renew itself completely within 10 years.

  • 13.

  • An adult uses around 200 muscles to make just one step!

  • (And don't tell me I don't work out enough!)

  • 14.

  • Every minute, your body sheds more than 3,000 skin cells.

  • It's almost 200,000 skin cells per hour and more than 9 pounds per year!

  • 15.

  • But don't worry: you still have about 300 million skin cells at any given moment.

  • Plus, your skin completely renews itself every 28-30 days.

  • 16.

  • The liver is the only human organ that can regenerate completely.

  • As little as 25% of the original liver weight can get back to its full size.

  • 17.

  • Skin cells create a lot of dust not only under your bed but also in the Earth's atmosphere!

  • If someone collected all the flaked-off skin cells floating in the air, this dust would

  • weigh up to a billion tons - it's 150 times the weight of the Great Pyramid!

  • How’s that for a comparison?

  • 18.

  • You won't be able to see your taste buds by the naked eye because they're too tiny.

  • The small bumps most people take for taste buds are called papillae.

  • Real taste buds are on top of these hair-like projections.

  • 19.

  • By the way, taste buds also have a very short life cycle.

  • They live for no longer than 10 to 14 days.

  • So they get a very short taste of life.

  • 20.

  • The average person has more than 100,000 hairs on their head.

  • And since this hair grows about 6 inches per year, it'll make more than 40 ft in a lifetime!

  • 21.

  • Some people can hear their eyeballs moving inside the eye sockets.

  • That must be no fun.

  • 22.

  • Unlike other parts of your body, your ears and nose never stop growing!

  • 23.

  • Your skin wrinkles if you stay in the water for too long, but not because it absorbs water.

  • When your body's wet, wrinkled fingers and toes provide you with a better grip!

  • You know, like when the treads on your car tires grip the road better when they're new?

  • 24.

  • Your eyes are an amazing instrument!

  • They can distinguish between 10 million different colors!

  • 25.

  • Your brain uses more than 20% of your body's energy even when you're resting.

  • When you're asleep, it still consumes almost as much power as when you're awake!

  • It also burns around 330 calories per day at that!

  • 26.

  • An adult person has about 25% of all their bones in the feet.

  • Most of them are tiny but crucial - if these bones are out of alignment, so is the rest

  • of the body.

  • 27.

  • You breathe around 20,000 times a day.

  • Try not to stop.

  • I actually set a personal best record today for consecutive days breathing, and I plan

  • to top that tomorrow.

  • 28.

  • Human bones are a real paradox: they're almost 5x stronger than a steel bar with the same

  • width but can fracture on impact and are rather brittle.

  • 29.

  • Fingers don't have muscles that can make them move.

  • All the muscles that move the finger joints are located in the forearm and palm.

  • 30.

  • Your body contains more than 37 trillion cells.

  • Earth has more than 7 billion inhabitants - it means that there are over 5,000 times

  • more cells in your body than people on our planet!

  • 31.

  • It surely depends on your lifestyle and on how much you move, but the average person

  • will walk up to 110,000 miles in their lifetime, which is half as long as the distance from

  • Earth to the Moon or more than 4 times longer than the distance around our planet!

  • 32.

  • If a person has anosmia (also calledsmell blindness”) they can't distinguish and detect

  • smells.

  • But they can still be smelly.

  • Ha.

  • 33.

  • You start feeling thirsty when water loss is 1% of your body weight.

  • More than 5% - and you may faint.

  • Water loss that's bigger than 10% of the bodyweight, and dehydration can end a person!

  • 34.

  • The strongest muscle in your body based on its weight is your jaw muscle.

  • 35.

  • At any moment, 50,000 cells in your body are getting replaced by new ones.

  • Boy that sounds like a company I used to work for.

  • 36.

  • By the end of their life, the average person can recall up to 150 trillion pieces of information.

  • Except for where they left their car keys.

  • 37.

  • Even if fingerprints are badly damaged, they still grow back with their original pattern!

  • 38.

  • Your most powerful sneeze can travel at a speed of more than 100 mph - almost as fast

  • as a skydiver in free fall!

  • 39.

  • 40.

  • The average person has about 250 hairs in each eyebrow.

  • These hairs get completely replaced every 4 months.

  • 41.

  • Your brain's memory capacity is equivalent to about 4 terabytes on a hard drive - which

  • is more than 8 million photos!

  • 42.

  • People are the only living creatures that can naturally sleep on their backs.

  • Even apes usually sleep in a sitting position, leaning on something.

  • 43.

  • Your longest bone is your thighbone, --not your funny bone -- and the tiniest one is

  • in the ear - it's shorter than a grain of rice.

  • 44.

  • The largest organ in your body is your skin.

  • Despite being thin, it weighs a surprising 9 to 11 pounds - that's the weight of a healthy

  • and well-fed house cat!

  • 45.

  • Your skull may feel like it’s all one piece, but, in fact, it consists of 29 different

  • bones!

  • 46.

  • The only part of your body that can't heal itself is your teeth!

  • Oh, what a shame...

  • 47.

  • Right-handed people tend to chew most of their food on the right side of their mouths, while

  • the left-handed opt for the left side.

  • 48.

  • Out of all people who can move their ears, only 30% can move just one ear.

  • Such talent!

  • 49.

  • Every person has dimples on their lower back.

  • But in some people, they're more pronounced than in others.

  • These dimples appear in places where the pelvis is connected with the sacrum, so their existence

  • (even if it's not apparent) makes sense.

  • 50.

  • Your right lung is shorter than the left one because it has to leave some room for your

  • liver.

  • The left lung, on the other hand, is narrower since it has to make space for the heart.

  • A male's lungs can usually hold more air than a woman's.

  • 51.

  • Surprisingly, you burn more calories when you're sleeping than when you're watching

  • TV.

  • 52.

  • By the time you turn 60, you're likely to lose 50% of your taste buds.

  • Aw!

  • 53.

  • Your hair grows twice faster when you're traveling by plane - it has to do with higher atmospheric

  • pressure.

  • 54.

  • The muscles that help your eyes focus make around 100,000 movements a day.

  • If you want to make your leg muscles move as much, you need to walk 50 miles.

  • 55.

  • When you listen to music, your heart starts beating in sync with it.

  • 56.

  • If all the wrinkles on the brain got smoothed out, it would be the size of a pillowcase!

  • Well let’s try it!

  • You first.

  • Nah, just kidding.

  • Hey, if you learned something new today, then give the video a like and share it with a

  • friend!

  • And here are some other videos I think you'll enjoy.

  • Just click to the left or right, and stay on the Bright Side of life!

Quick question: do you think you know everything about your own body?

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55個快速身體事實,會讓你的下巴掉下來。 (55 Quick Body Facts That Will Make Your Jaw Drop)

  • 5 1
    林宜悉 發佈於 2021 年 01 月 14 日
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