2. During your lifetime, you will produce enough saliva to fill two swimming pools. Actually, saliva is more important than you realise. If your saliva cannot dissolve something, you cannot taste it.
3. The largest cell in the human body is the female egg and the smallest is the male sperm. The egg is actually the only cell in the body that is visible by the naked eye.
4. The strongest muscle in the human body is the tongue and the hardest bone is the jawbone.
5. Human feet have 52 bones, accounting for one quarter of all the human body’s bones.
6. Feet have 500,000 sweat glands and can produce more than a pint of sweat a day.
7. Sneezes regularly exceed 100 mph, while coughs clock in at about 60 mph.
8. Your body gives off enough heat in 30 minutes to bring half a gallon of water to a boil.
9. Your body has enough iron in it to make a nail 3 inches long.
10. Everyone has a unique smell, except for identical twins, who smell the same.
11. A baby’s head is one-quarter of it’s total length, but by the age of 25 will only be one-eighth of its total length. This is because people’s heads grow at a much slower rate than the rest of their bodies.
12. Babies are born with 300 bones but, by adulthood, the number is reduced to 206. Some of the bones, like skull bones, get fused into each other, bringing down the total number.
13. It is not possible to tickle yourself. This is because when you attempt to tickle yourself you are totally aware of the exact time and manner in which the tickling will occur, unlike when someone else tickles you.
14. Your nose can remember 50,000 different scents. But if you are a woman, you are a better smeller than men, and will remain a better smeller throughout your life.
15. Your eyes are always the same size from birth but your nose and ears never stop growing.Post published in: World News