If you are bitten by a poisonous snake, and fail to receive medical attention, you still have a 50% chance of survival.
28
When you look up at the blue sky and see white dots flying around, you’re actually seeing your own white blood cells.
30
Your stomach produces a new layer of mucus every two weeks so that it doesn't digest itself.
160
Perspiration is odorless; it is the bacteria on the skin that creates an odor.
39
The average person has over 1,460 dreams a year!
69
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139