It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
Redheads require up to 20% more anesthesia to be knocked out.
112
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
In older people, memory is best early in the morning and then declines during the late afternoon.
33
A study in the UK states that men need at least two "guys nights out" each week to stay healthy.
5
Your ears secrete more earwax when you are afraid than when you aren't.
229
The whiter your tongue, the more germs there are on it.
88