The human body is the entire structure of a human being. It is composed of many different types of cells that together create tissues and subsequently organ systems. Here are a few fun facts you may not have known about the human body and all its functions

1. The average human will shed 40 pounds of skin in their life
2. Here’s an unbelievable fact: the only reason the acid in your stomach doesn’t eat right through your body is because the stomach cells are renewed faster than they are destroyed.
3. Your stomach acid is even strong enough to dissolve razor blades
4. In order to taste something your mouth has to be able to dissolve it. Try drying off your tongue before eating your favourite candy…
5. Your brain uses up about 20% of all your body’s oxygen and calories
6. Apart from identical twins every single person on Earth has a unique smell
7. A higher IQ is correlated with more dreams
8. You may not believe this but you are about 1 cm shorter at night. This is because the cartilage between your bones is compressed throughout the day
9. Here’s another unbelievable fact, your feet have half a million sweat glands that produce over a pint of fluid everyday. Eew!
10. There are over 300 million capillaries in your lungs. If you stretched them out end to end they would reach across the United States
11. If you laid all of your blood vessels end to end they would stretch 60,000 miles, or around the world nearly two and a half times
12. Women blink twice as much as men
13. Men get hiccups twice as much as women
14. During your lifetime, you will produce enough saliva to fill two swimming pools.
15. After eating too much, your hearing is less sharp
16. By age sixty you will have lost half your taste buds
17. Babies can only see black and white when they are born
18. Your cornea is the only part of your body without a blood supply. It gets its oxygen directly from the air
19. You knew that 75% of your body is water, but did you know that 80% of your brain is water?
20. The average life span of a human hair is 3-7 years
21. Aside from being flammable, human hair is exceedingly difficult to destroy even with strong acids
22. The human body may appear fragile but it’s possible to survive even with the removal of the stomach, the spleen, 75 percent of the liver, 80 percent of the intestines, one kidney, one lung, and virtually every organ from the pelvic and groin area.
23. A full bladder is roughly the size of a softball
24. Your teeth start growing 6 months before you are born
25. Most babies are born with blue eyes. Exposure to ultraviolet light (the sun) and melanin are what eventually bring out their true colour