The heart pumps about 1 million barrels of blood during an average lifetime!
30
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
Your hair grows faster in the morning than at any other time of day.
91
The human brain is more active during sleep than during the day.
28
During menstruation, the sensitivity of a woman's middle finger is reduced.
47
Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
18
In Nepal, cow dung is used for medicinal purposes.
19
In Japan, condoms are commonly sold 'door to door'!
54