The first patented condom was meant to be reused!
47
Your body is creating and killing about 2.4 million red blood cells per second.
17
During menstruation, the sensitivity of a woman's middle finger is reduced.
47
The human brain is more active during sleep than during the day.
28
The whiter your tongue, the more germs there are on it.
88
When you look up at the blue sky and see white dots flying around, you’re actually seeing your own white blood cells.
30
The aorta, the largest artery in the body, is almost the diameter of a garden hose.
37
10 seconds is the amount of time until unconsciousness after the loss of blood supply to the brain.
108