Health
Discover facts about health. Small discoveries that change the way you see familiar things.
Health

Total body water percentage drops as you get older
Aging is basically a very slow, cruel dehydration process. While infants are essentially squishy, walking water balloons hovering around seventy-five percent…
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Why people float more easily in salt water
Sinking in the ocean actually requires active, coordinated effort. Thanks to a combination of lung volume and lipid reserves, the average human displaces…
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Why pool water can turn blonde hair green
Everyone aggressively blames pool chlorine for ruining blonde hair, but chlorine is just the innocent bystander. Hard water and pool pipes contain microscopic…
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The hidden part of your nail that controls its shape
You can file and buff all you want, but your nail's destiny was decided deep underground. The hidden matrix beneath your cuticle completely controls whether…
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Urine consists almost entirely of water and useless urea
Despite all the mystical properties ascribed to morning voids, it is profoundly boring chemistry. Your body is just aggressively throwing away excess…
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Essential fat physically cushions your fragile organs
Attaining zero percent body fat is a brilliant way to immediately end your life. A mandatory layer of essential adipose tissue is structurally required to…
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Your joints slide on something smoother than ice
The shiny white caps on the ends of your skeletal frame possess impossibly slick physical properties. Hyaline cartilage, when properly lubricated, operates…
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Human hair slowly grows roughly six inches per year
Trying to grow out a bad haircut is an exercise in extreme, agonizing patience. Your follicles operate at a glacial pace, pushing out roughly half an inch of…
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Frostbite can destroy cells with ice crystals
Losing a finger to the winter cold involves horrific microscopic violence. As tissue freezes, sharp microscopic ice crystals form in the fluid strictly…
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Tourniquets can remain tight for roughly two hours
Hollywood drastically misrepresents severe limb trauma management. While cinching down a heavy strap to entirely halt fluid circulation looks incredibly…
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Vocal tract functions perfectly as a physical acoustic tube
Your throat is functionally identical to a very squishy trombone. The exact length and shape of the physical tube leading from your vocal flaps to your lips…
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Freezing cold air physically shrinks the respiratory airway
Winter air is violently hostile to your delicate internal pipes. Inhaling rapidly dropping temperatures causes the hyper-reactive smooth tissues lining your…
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Your scream can reach 120 decibels
Your acoustic hardware is frighteningly overpowered. Under extreme duress, humans have been recorded screaming at over one hundred and twenty decibels,…
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Why a fast ascent can make nitrogen bubble inside you
Ascending too fast from a deep dive aggressively carbonizes your internal fluids. Drastic pressure drops cause trapped nitrogen gas to suddenly rip out of…
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Blondes have more hair—but finer strands
Mother Nature apparently plays favorites when handing out hair follicles. Blondes bizarrely possess far more individual hairs on their scalp than brunettes or…
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Your body makes water while burning fuel
You do not just drink water; you actively manufacture it like a covert chemical plant. As your cells furiously break down carbohydrates and fats for basic…
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Human cheeks contain highly specialized buccal fat pads
Your face is equipped with tiny, isolated grease pockets just to help you chew properly. Buccal fat pads act as crucial gliding mechanisms for facial…
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Whispering may strain your voice more than talking
Trying to be quiet is actively destroying your throat. When you whisper, you violently force your vocal flaps tightly together while frantically pushing air…
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Florida has a billing code for alligator bites
Florida's unofficial mascot has its own corner of the healthcare billing database. Under code W58.01, getting bitten by an alligator transitions from a…
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Progesterone spikes dramatically right after ovulation ends
The endocrine system is a master of dramatic hormonal shifts. The moment an egg is released, the body violently ramps up progesterone levels to prepare the…
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Cherry pits contain a poison that appears when crushed
Your favorite summer fruit is secretly packing a biochemical weapon. The hard pits inside cherries contain amygdalin, which converts directly into hydrogen…
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Some hospitals charged parents to hold their baby
The absolute peak of cynical clinical billing is the 'Skin-to-Skin Contact' fee. Hospitals literally charge new parents a dedicated line-item fee to hold…
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Your body makes formaldehyde every day
You do not need to visit a mortuary to find embalming fluid; you are already making it. The human body naturally produces small amounts of formaldehyde as a…
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Hospitals have a code for being struck by a duck
Getting physically dominated by a waterfowl is humiliating enough without a clinical administrator assigning it code W61.62xD. Hospital databases are secretly…
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