Those who get out of bed by 7am are more likely to be thinner and happier.
20
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
Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
18
During a typical human life span, the human heart will beat approximately 2.5 billion times.
21
20 minutes after smoking a cigarette, blood pressure drops to normal.
37
If your stomach didn't produce a new layer of mucous every two weeks, it would digest itself.
33