Human Body Facts for Kids
Surprising facts about your body
No two people have exactly the same set of teeth. Just like fingerprints, your dental pattern is completely unique to you.
Your blood travels roughly 19,000 kilometres through your body every day — that is nearly half way around the Earth.
The brain itself has no pain receptors, which is why brain surgery can sometimes be performed while the patient is awake.
Your outer layer of skin completely replaces itself roughly every 27 days. Over a lifetime, you shed about 35 kilograms of dead skin.
Your brain generates about 20 watts of electrical power when you are awake — enough to dimly light a small bulb — despite being only 2 per cent of your body weight.
Your stomach acid is so strong (with a pH as low as 1.0) that it could dissolve a metal razor blade. The stomach lining replaces itself every three to four days to survive.
Babies are born with about 10,000 taste buds — far more than adults — which is one reason why they can be fussy eaters. By adulthood, you have about 5,000.
If you uncoiled all the DNA in every cell of your body and placed it end to end, it would stretch roughly 34 billion kilometres — enough to reach Pluto and back several times.
Your nose is always in your field of vision, but your brain learns to ignore it through a process called unconscious selective attention.
The liver is the body's busiest organ, performing over 500 different functions including filtering blood, storing vitamins, and producing bile to digest fats.