Your thumb is about the same size as your nose.
124
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.
22
Dieters who sleep more take off more fat that those who sleep less.
159
Bearing a male child can alter a woman's brain by leaving male DNA that can persist for the rest of her life, making her less likely to suffer from Alzheimer's disease, promote tissue repair, and improve her immune system.
16
Poor eyesight (myopia) is associated with higher IQ.
232
If you unfolded your brain, it would cover an ironing board.
42
