15 Things You Didn't Know About Your Own Body

 • From why we get a runny nose to bacteria inside us outnumbering cells, we count 15facts about our own bodies we never even knew 15 - Taller,• Did you know that we actually change height based on the time of day? On average, you'reone inch taller when you wake up in the morning • When you sleep, excess fluids build upinside your spinal discs, and the stress of standing in a day causes the fluid to seepout - making you lose height • If you measure yourself first thing inthe morning and again at night, you should see a small but visible difference14 - Human bone, • When it comes to bones in our body, ourbones might snap easily enough but when it comes to supporting weight, we're almost uncontested• Just one tiny matchbox sized piece of bone can support over 9 tonnes of weight,with that ability increased when you factor in the actual size of our bones• To put it into perspective, concrete can't even support 4 times less weight than boneswithout crumbling 13 - Tickling,• Have you ever tried tickling yourself? Doesn't really work, does it? The reason forthis is your brain actually anticipates the sensation• It discards expected ones and alerts you to unexpected ones, hence why you might havesuch a strong reaction to someone else tickling you• It's the same thing that helps dull the feeling from your fingertips - unless you'reactively thinking about it or touching something strange12 - Brain, • While some people feel you get smarteras you get older, the reality is you're actually losing your intelligence as you age• Every single day, you're losing more than 1,000 brain cells since your brain is workingcontinuously even when you're sleeping or watching daytime TV• When you wake up, your brain is in crunch time, working hard to replenish your daytimefunctions to peak efficiency 11 - Nostril Breathing,• You might never think about it, but breathing through your nose is actually quite complex- and the effects are intense • 85% of people only breathe through onenostril at a time, the other nostril gets subconsciously blocked by tissue swelling,which you might've noticed when you can't unclog one nostril even though there's nothingin there • And depending on which nostril you breathethrough, it affects your brain - breathing through the right nostril activates the logicalside of your brain, whereas the left makes you more creative10 - Heart Pumping, • In one year, your heart will pump 40 milliontimes, which means if you were to live a long healthy life, your heart will have pumpedwell over 2 billion times • To put it into perspective, you'd needto drink 4 cups of water each day for four months just for it to equal the same amountas how much blood your heart pumps through your body each hour• Likewise, over your life, you will have pumped enough blood through your system tofill over a dozen super oil tankers 9 - Sleep in Eyes,• You know when you wake up and you have all this crust in your eye? Have you everwondered what that stuff actually is? • It's called gound, a mixture of dust,blood cells, skin cells and gland mucus - during the day it helps keep tears from evaporatingfrom your eyeballs, as well as keep your eyes sealed airtight when closed• When you sleep, you don't blink the gound away so it builds up and dries out, creatingyellow-ish crust material 8 - Stomach,• Your stomach can digest a whole array of things, and if it weren't for the mucouslining, it'd actually end up digesting itself • Fortunately, the acid is kept in checkbecause your stomach manufactures a new lining every few days, stripping away the old tobring in something new and stronger • The acid in your stomach is so strongthat it's used as a corrosive compound to treat various types of metal7 - Runny Nose, • We all get runny noses when we have theflu, but even when we're just cold our nose will tend to drip way more than normal• This is because normally we produce a litre of mucus daily, most of which gets swalloweddown our throat without us even noticing • In cold weather, more blood is pumpedthrough our nostrils, accelerating snot production in addition to keeping our nose warm so thatwarm air enters our lungs 6 - Skin,• Everyone knows about all the internal organs we have - but did you know that theskin covering your body is actually a giant organ itself?• It's a living carpet that regenerates tens of thousands of cells every few secondsand sheds the old skin constantly • And our skin is so prominent that it actuallymakes up over 12% of our overall weight alone 5 - Muscle Soreness,• For a long time throughout history, people have wondered why our muscles get sore froma new workout - in fact for a while people thought it had to do with lactic acid buildupin the muscles • But the reality is: when you do a newworkout or a strenuous version of your current workout, microfractures form in the musclecells, causing a burn • Which explains why you don't feel it quiteas often when you're used to a certain workout or exercise4 - Gaining Weight, • For every pound you gain, your body needsto create new blood networks to accommodate it - which means you're adding miles worthof new blood vessels each time you gain even a tiny bit of weight• It also means your heart needs to pump faster in order to keep up with this new workload- leading to reduced oxygenation and nutrient replenishment in other tissues• Luckily, for each pound you lose, your body will reabsorb these redundant vesselsinto previous tissues 3 - Gut Bacteria,• We have about 10 trillion cells in our body, but that number is dwarfed by the amountof bacteria that lives in our gut alone - 100 trillion of them• It's not all bad bacteria though, most of them break down food for digestion, providevitamins and eliminate invading pathogens • In fact, if you were to remove just onefamily of these microbes, you'd be far more prone to various diseases including obesity2 - Body Heat, • Body warmth is necessary to keep us alive,but the heat we generate is so high that in only thirty minutes you'd have generated enoughto boil half a gallon of water • The reason for this: the heat from dailyactivities, exercise, sweat, exhale, digesting food and even urinating puts your body intooverdrive, putting out energy and the heat needed to survive1 - Five Senses • The old saying goes that we humans onlyhave 5 senses, sight, taste, sound, smell and touch - but did you know we actually havemore than 9? • In addition to these, we also have pressure,proprioception in which you can sense your own body parts, tensions sensors for muscles,thirst, hunger and magentoception, to detect magnetic fields• Something debated is whether or not the ability to perceive time is a singular mechanisminside us, or a collection of things more to do with our brain as a whole.

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