It takes about 20 seconds for a red blood cell to circle the whole body.
102
Laughing could dramatically improve your health – and be as good for you as a deep state of meditation, researchers have found.
28
During menstruation, the sensitivity of a woman's middle finger is reduced.
47
A toothbrush within 6 feet of a toilet can get airborne bacteria from flushing.
15
The average person who stops smoking requires one hour less sleep a night.
79
The male fetus is capable of attaining an erection during the last trimester.
75
Dieters who sleep more take off more fat that those who sleep less.
159
There are times when you're walking that the pressure on your feet exceeds your body weight, and when you're running, it can be three or four times your weight.
62