All humans have the ability to see ultraviolet light, but it is passively filtered out by the eye's lens. People who undergo surgery to remove the lens can detect ultraviolet light.
21
Human thigh bones are stronger than concrete!
63
More people use blue toothbrushes, than red ones!
66
After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
55
Your tongue is the only muscle in your body that is attached at only one end.
173
It is almost impossible to sneeze with your eyes open. It is a defense mechanism that has evolved to protect our eyes from bacteria and debris.
164
There's a new vaccine for alcoholism that gives drinkers an immediate and harsh hangover, even if they drink a small amount of booze.
14
Poor eyesight (myopia) is associated with higher IQ.
232