If You Can Drink Milk, You Have a Rare Body Feature

seems a little weird but very few people can actually digest milk the thing is there's some special enzyme let's call it a little helper that breaks down the sugars any milk has when people grow up they run out of this enzyme and only a little over 30 percent of all people retain some of it [Music] our brain can store only seven bits in its short-term memory don't even try to compare your brain with a phone capacity not even the one you had back in 2005 a mere bite is eight bits that's why you can't even learn a phone number by heart [Music] our short-term memory functions just like a chalkboard you can get some info but sooner or later you run out of space to check your working memory capacity try this test ask a friend to write a list of ten words and read it to you most people recall seven or fewer items from the list working memory is an essential thing that we need to perform almost any everyday activity including basic conversations navigating in the city and even trying to copy the moves from a workout video if you wear a hat it actually warms your hands and even feet with a hat the heat is basically trapped inside and it circulates all over your body including toes finally good news fingernails grow faster than toenails so you can officially cut the toenails a bit less often i don't really like to bend to take care of those claws on my feet if you're sleeping it doesn't mean that your whole body rests in fact sometimes your brain has to work even harder when you're asleep it needs to process tons of information and reports usually take a lot of time humans can't multitask it's true we need time to switch from one task to another but if we try to tackle several things at the same time it's not going to be very productive now you're most likely to be unable to isolate your ring finger every time you move your pinky or the middle finger you'll move the ring finger too the ability to isolate it is hereditary when you stretch out your arms the distance between the tips of your fingers is almost equal to your height [Music] now it's not true that people can't touch the nose with their tongue superpower is called the gorelin sign and about 10 percent worldwide can perform it try this one lift your right foot and start rotating it in a counterclockwise direction try to write the number six with your big toe in the air now check the direction your foot's moving it's moving in the opposite direction because to write the number six you need to make a counterclockwise movement people with double jointed thumbs can bend them backwards look super unusual and very few people can do that still it's totally okay it doesn't hurt to bend a thumb this way either [Music] hey next time you're talking to a friend try to breathe in through your nose don't pause to inhale try to do it in the middle of a sentence while speaking that can be rather tough only about one percent can do that and they're usually musicians our brain is actually pretty large almost as large as a pillowcase it's squeezed into a relatively small head just because it's very wrinkly if you could spread it out you'd see how brainy you really are we're made of teeny tiny cells to see just how small those cells are imagine that 10 000 of them could fit easily on the head of a pin you could literally glow at night many fish algae and fungi are bioluminescent and so are you turns out that human beings can emit life nope your friends aren't going to ever see that without special tools so you can't really brag it actually takes a bit longer to start a new habit it's not 100 true that 18 or 21 days are enough as many people think the process of getting a new habit can take up to 254 days but on average it takes around 66 days for a new habit to become automatic if you want to become a tiny bit happier try spending some money on others people are social creatures and we used to need others help to survive our brain developed a reward system when we do something positive for others we get oxytocin one of the happiness hormones now when you're asleep you won't smell anything nasty the thing is that your sense of smell deactivates at night if there's some really terrible smell in your bedroom you won't even be bothered it's been believed for a long time that a person could distinguish more than 10 000 smells a recent research showed that people were able to distinguish more than a trillion smells we also remember them better than anything else and smells can even evoke some distant memories tomatoes have more genes than humans this shouldn't concern you though because it's not the number of genes that matters but the complexities of their connections fingernails don't only help us catch random tiny objects and peel the stickers off if you didn't have a rigid structure against which to press you wouldn't be able to judge how firmly to hold anything now your toes are the humble helpers they carry about forty percent of your weight if you've ever heard that humans don't really need their toes don't believe it they're also the main pushers when you walk we've got two really fast muscles they control the eyelid closing in fact they're the fastest muscles in our body eyes are fragile and need protection that's why when the reflex is triggered these muscles shut the eyes within about 100 milliseconds that's not more than 0.1 seconds [Music] if you find hairs in the bath after having a shower it doesn't mean you're going bald this is normal because an average person sheds 40 to 150 hairs per day baldness becomes noticeable after you've lost more than 50 000 hairs we recognize only purple blue green yellow and yellow red colors everything else is a combination of these three it's impossible to calculate how many of these combinations the human eye sees because every single person has slight vision differences but it's about one million combinations on average all the hair you see on your head is only about 10 to 15 percent of all the hair you've got this hair is in its resting phase and it either doesn't grow or sheds eighty to ninety percent are actually growing at any given time retinal scanning is more reliable than fingerprint scanning the fingers have about 40 unique characteristics and the eye has 256. we feel about 80 percent of the taste of any food thanks to the nose and its ability to recognize odors if you hold your nose while eating you will taste almost nothing you might have a chocolate bar or smoked fish in your mouth there will be no difference for you your nose doesn't just help you breathe and catch odors it filters the air for sensitive throats and lungs if we inhale dry air the nose moistens it cools it and heats it if it's necessary also the nose cleans the air from dirt hey where do you think boogers come from [Music] the human eye has some resemblance with a car engine they both need various liquids to work properly an engine needs oil lubrication and an eye needs tears in order to work well the tears should be thoroughly distributed all over the eye that's why we blink up to twenty thousand times a day so an eyelid is a bit like a windshield washer we can accidentally digest small objects such as plastic items glass coins and many other small objects they'll make their way through the digestive tract within 48 hours see you later we can digest plastic in case of emergency and in tiny quantities but the human digestive system can't really bear grass grazing animals have special teeth and several stomach sections to process raw leaves and grass well we have none of that equipment that's why we have cows ever wondered why you feel so sleepy after lunch well that's because your circadian rhythms which have 24-hour cycles demand you have a nap after seven hours of being awake and food just adds to this effect when you crave a snack it's your brain sending you a signal that you're lacking some vitamins or minerals you probably don't want candy as bad as you think you do so just have a couple of nuts instead no not me

Channel: BRIGHT SIDE

Views: 466,767

Rating: 4.8800244 out of 5

Keywords: bright side, brightside, bright side videos, cool human body facts, crazy human body facts, human body fun facts, human body facts for general knowledge, human body facts in English, human body facts brightside, human body, human body facts, why can't I drink milk, how the body works, rare body features, rarest body features, body features that are rare, bright side body features, cool body features, rare human body features, most unique body features, interesting facts

Id: CWavftAoBb4

Length: 9min 32sec (572 seconds)

Published: Thu Feb 11 2021