Placeholder Image

Subtitles section Play video

  • grab a mirror.

  • Yep, hair's looking great today, so you're ready to find out the coolest aspects of the human body.

  • Well, check this out.

  • You can't tickle yourself.

  • Go ahead, try it.

  • It's because your brain knows in advance and prepares the body for this tickling.

  • When we're tickled by other people, it can't do that so well.

  • And then I slugged the person just kidding.

  • The average person has 150,000 hairs, and they can support the weight of a cruise ship anchor about 13 tons not as strong as steel but heftier than aluminum.

  • And Kevlar here is not only strong but also elastic.

  • It can stretch about 30% of its length when wet.

  • Redheads make up just 1% of the population.

  • Blondes are about 2% and the rest of us have dark hair.

  • So which group are you in?

  • Let me know.

  • Down in the comments.

  • The average person sheds 40 to 150 hairs a day.

  • Sounds like a lot, but you only notice baldness.

  • After losing more than 50,000 hairs, you'll manage to eat 35 tons of food over your life.

  • That's as heavy as the space shuttle.

  • You'll also grow almost 600 miles of hair in the lifetime, and that's twice the length of the Grand Canyon.

  • Sure does make shaving an endless George Theat Bridge Woman will spend 72 days in a lifetime just on shaving her legs.

  • Men will spend four months of their life shaving their facial hair and all that time you spend trimming your nails.

  • If he didn't do that, you grow six feet of nails over a lifetime.

  • Your brain holds about 25 million gigabytes.

  • That's three million hours of your favorite TV show.

  • Hey, what's yours?

  • Tell me in the comments.

  • We have 1/6 sense appropriate exception.

  • It tells us where the various parts of our body are in space.

  • It's why you can walk up a flight of stairs or throw a ball without looking down at your feet or edge your arm.

  • On any given day, you'll blink around 30,000 times.

  • In fact, your eyes are closed for 10% of your waking hours, just from blinking.

  • Everyone, including you and may glows in the dark.

  • You can't see it because human eyes aren't sensitive enough to pick it up.

  • Your face glows more than the rest of your body.

  • You also glow the strongest in the late afternoon and the least at night.

  • Bummer.

  • Some people's eye color changes with age.

  • Your irises can also look a different hue, depending on pupil dilation, and that can change with emotions.

  • That's why you might hear of people's eyes going dark when they're angry.

  • Um, we usually blink every four seconds, but you do it less when you're reading.

  • That's where your eyes get tired.

  • While looking at books and screens, newborns don't cry tears for the first couple months.

  • They just cry loudly.

  • By adulthood, you produce about half a teaspoon of tears a day.

  • The eyes themselves only see a to D world upside down, but the brain quickly processes this image into three D and flips it.

  • Our eyes have specific tools.

  • Justice see red, blue and green.

  • Everything else is a combination of these colors.

  • In total, we perceive about seven million colors, and there are still plenty that our eyes don't pick up.

  • People without islands is conceit, ultraviolet waves joining the ranks of certain fish, birds, bees and reindeer.

  • To them, power lines glow.

  • Now you wouldn't know it, but your peripheral vision is almost entirely black and white.

  • It's because you have more of those color detecting tools called cones in the center of your retina than at the sides.

  • Retinal scanning is more reliable than a fingerprint scan.

  • The fingers have about 40 unique characteristics, and the eye has 256 meaning we all see the world a little differently.

  • The nose and Sinuses produced about three pints of mucus a day.

  • You wouldn't know it.

  • Most of it goes down your throat.

  • Sorry for that.

  • You feel 80% of the taste of any food, thanks to your sense of smell.

  • That's why food seems bland.

  • When you're congested, you hold your nose or you're in an airplane, which dries out your nose.

  • Human nose can detect about one trillion unique sense, but your dog still has you beat by 100,000 or possibly 100 million times that.

  • A study involving Finnish people speaking English found that learning a foreign language can strain your vocal cords is because your pitch rises when you speak a second language.

  • It's not all bad, though, experts say learning a foreign language at any age, improves attention and concentration and even makes your brain grow.

  • Saliva is basically filtered.

  • Blood glands don't let out the red cells that give blood its color.

  • Bad morning breath is just the smell of built up bacteria that haven't been washed out by saliva at night.

  • If you want to get rid of it, give your tongue a good brushing when you clean your teeth.

  • 85% of smell is coming from there.

  • Theo Human body is 60% water, So if you took out all the water in your tissues, you trick and lose 2/3 of your body mass.

  • Though I wouldn't recommend turning yourself into a human raisin.

  • We lose about £6 of skin cells each year.

  • Ever lifted a gallon of paint?

  • It's about that much.

  • Your hands and feet together contain over half the bones in your body.

  • Fingernails grow faster with each generation, so yours likely girl faster than your great grand parents did when they were your age.

  • It's because nail growth is an indicator of a person's health.

  • We get better meals and more nutrients now than they did some 80 years ago.

  • Your fingernails grow faster than your toenails because they get more sunlight, air and use.

  • The average adult human body contains enough fat to make seven bars of soap.

  • Goose bumps are left over from evolution.

  • The meter ancestors hair stand up, helping them appear bigger and scarier to foes.

  • I kind of like when cats, ISS and arch, they're back.

  • Wisdom teeth are another relic left over from our ancestors.

  • As early humans, brains grew bigger.

  • It reduced space in the mouth, crowding out these teeth.

  • We no longer needed these teeth to chew through tough plants and roots.

  • We started using our big brains to cook food.

  • The heart pumps 1/3 of a couple blood with each beat.

  • It beats 100,000 times a day.

  • Do the math.

  • A person has the same amount of neck vertebrae as a giraffe does, and that's seven.

  • The spine can withstand a weight of upto £1000.

  • I wouldn't recommend lifting any grand pianos up on your shoulders, though.

  • Even if you're spying technically could do it.

  • They might not be a sharp, but your teeth are a strong as a shark's human enamel is softer, but the tooth has a special crystal structure that prevents it from cracking.

  • Stretch your arms out to the sides.

  • From fingertip, the fingertip is equal to your height.

  • The pinky accounts for half of the strength of your grip, but the thumb is still the most important finger.

  • Without it, you'd hardly be able to grip it all.

  • Our bones are about five times stronger than steel.

  • You can't swallow and breathe at the same time.

  • But when you were less than a year old, you could the cornea of the eyes, the Onley part of the body that has no blood supply.

  • It gets oxygen directly from the air.

  • The human body has enough blood to feed 15 million mosquitoes.

  • You have enough iron inside your body to make a three inch nail.

  • Earwax is actually good for you.

  • It protects the year from bacteria, dirt and itchy dryness.

  • In fact, you shouldn't need to clean your ears.

  • They clean themselves by pushing the wax out.

  • You're taller in the morning.

  • Then in the evening throughout the day, the cartilage in your knees and the space between your spinal disc get compressed by gravity.

  • When you sleep, they loosen up again.

  • It's hard to get out of bed in the morning because your brain is instinctively trying to protect you from the stress of the day ahead.

  • Ah, isn't that nice?

  • Tell that to your boss the next time you're late.

  • Hey, if you learn something new today that give the video alike and share with a friend and hear some other cool videos, I think you'll enjoy.

  • Just click to the left or right, and remember, stay on the bright side of life.

grab a mirror.

Subtitles and vocabulary

Click the word to look it up Click the word to find further inforamtion about it