65+ Body Facts I Had to Watch Twice to Believe

so have you ever wondered how many atoms there are in your body and why do your veins look blue instead of red well let's poke around the human body and see what's going on goosebumps are an evolutionary reflex left over from our ancestors the release of adrenaline made their hair stand up and they look scarier to approaching predators the beating sound your heart makes is the clap of valve leaflets opening and closing your heart doesn't replicate itself unless you have an injury your corneas are the only parts of your body that don't get blood they get oxygen directly through the air the human brain has 100 billion neurons give or take the vessels in your body are long enough to circle the Earth twice or more the idea that we use only 10% of our brains is a myth at any given time you use almost 100% otherwise you wouldn't be able to perform simple tasks like drink a cup of coffee when ancient Romans flex their biceps they thought their muscles look like mice this way the word muscle translates as little mouse and Latin your left lung is smaller than the right one because it shares space with your heart experts used to think that we can only distinguish 10,000 smells in fact a recent study found human beings can recognize one trillion smells more than 70% of your brain consists of water and it needs 20 % of your body's oxygen supply there are around 700 different species of bacteria in your mouth over 6 billion of them live there your skin is your largest organ it can cover the surface area of two bath towels for every pound of fat you gain you generate one mile of new blood vessels to supply oxygen and nutrients to your body your stomach produces a new lining every six days to avoid digesting itself the membranes blood vessels and muscles surrounding your brain have pain receptors but your brain doesn't that's why you don't get brain aches teeth are considered part of your skeleton but they don't count as bones nerve cells transmit one thousand nerve impulses a second they travel at 1 to 268 miles per hour our DNA contains 100,000 viruses scientists have discovered one that goes back 100 million years if you type 60 words per minute for eight hours a day it would take you 50 years to type the human genome the biggest molecule in the human body is the chromosome 1 a human cell has 23 chromosome pairs and each chromosome one is made of 10 billion atoms you inhale 25 sextillion molecules in just one breath as 25 followed by 2104 keeping score you have a leaf shaped flap at the top of your larynx which shuts every time you swallow to prevent food getting into your lungs the idea that the tongue has flavor zones is a myth all tastebuds can detect five tastes but some receptors are more responsive than others the enamel of our teeth is the hardest substance in the human body 96% of it consists of minerals humans get only two sets of teeth across their whole lifetime but crocodiles replace their teeth more than forty five times your nose gets runny ER when you have the flu because it produces excess mucus to get rid of microbes invading your body your sense of smell is the only one that goes directly to the part of the brain that controls your emotions and memories the bumps on your tongue aren't taste buds they're mushroom shaped bulbs each of them has up to five taste buds with 100 taste receptor cells each your pancreas contains taste receptor cells that allow it to detect not only sugar but artificial sweeteners too it uses the taste data to balance out hormones the most abundant element in the human body is oxygen as 65% but it also contains lithium cobalt gold and uranium the rarest one of all is radium to give you that glow I assume you swallow 600 times a day once every minute when you're awake and around 3 times per hour while sleeping human beings are the only animals that willingly delay sleep so put your phone away the average person has 10,000 taste buds but as they get older some taste cells are not replaced an older person may have just 5000 working buds you have 5,000,000 hair follicles on your body and only 100,000 of them are on your head hair grows half an inch every month so a 70 year old person that never got a haircut would have hair as long as a telephone pole your eyes get their color from a pigment called melanin brown-eyed people have more melanin than those with green eyes which reminds me people with blue eyes have completely colorless eye tissue they get their color the same way water and the sky get their shades of blue the average lifespan of one eyebrow hair is 4 months the body of a 110-pound person contains 40 tablespoons of salt less than 1% of the population is born with our hearts on the right side of the chest instead of the left you blink 15 to 20 times per minute and your eyes have the fastest muscle group in your entire body but when staring at a computer screen your blink rate goes down to five times a minute the blood in your body travels four miles per hour and it reaches your brain in just a few seconds you have around 3 million sweat glands in your body many of them are on the soles of your feet and on your palms forehead armpits and cheeks if you walked 2 miles per hour you'd have to walk for 20 hours straight to lose one pound if you walk 2 miles per hour non-stop it would take you 518 days and eight hours to circle the equator earwax isn't actually wax it contains fat skin cells sweat and dirt aren't you glad you asked oh you didn't embryos develop fingerprints at three months sunburn is the result of radiation exposure when your body's natural defense mechanism gets overwhelmed trying to fight UV rays a toxic reaction occurs that results in sunburn you get red eyes and photos because when the camera flash goes off your pupils don't have enough time to constrict a large burst of light reaches your retina and it bounces back the earliest known person to have had blue eyes lived in the Stone Age 7,000 years ago contrary to popular belief contact lenses can't get lost behind your eye your teeth begin to form before you're born but don't come out until you're 6 to 12 months old left-handed people usually prefer to chew on the left side and right-handed people well duh they chew on the other side even if your fingerprints are damaged they'll go back in the same unique pattern there's a name for the growling sound my stomach makes when I'm hungry it's called borborygmi which i think is Latin for hey dude can I get some food over here vanes look blue because light has to go through layers of skin and fat to reach them your skin scatters a lot of the red portion of white light before it reflects the blood this leaves only the blue light to bounce back to your eyes a person who has amnesia is unable to detect smells but phantosmia is when a person smells an odor that isn't actually there your fingernails grow twice as fast as your toenails it would take fifteen and a half months for your toenails to grow one inch but only seven months for your fingernails to get this long the outer layer of your skin is thicker on your feet than other parts of your body the heart has its own electrical system and can continue beating even when it's disconnected from the body we won't go into how that can happen but trust me when breathing a single lung only uses five percent of the oxygen you've inhaled your right kidney is probably smaller and sits lower down than your left kidney to make room for your lover I mean liver a 150-pound person's body is made up of seven octillion atoms how many zeros anyone Bueller Bueller yep 27 it takes six to eight hours for food to travel through your stomach and small intestine that's because your body is trying to absorb all its nutrients food doesn't need gravity to get to your stomach your muscles constrict and relax to push it down kind of like a boa constrictor [Music]

Channel: BRIGHT SIDE

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Keywords: bright side, brightside, bright side videos, good news, 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, human eye, human ear, facts about the human body, human teeth, human skeleton, muscular system, vital organs, the human brain, human heart, human anatomy, human skin, fascinating human body facts, muscle facts human body

Id: XDTPxLWb0GU

Length: 10min 5sec (605 seconds)

Published: Thu Jul 02 2020