Your body is creating and killing 15 million red blood cells per second!
14
If you cut a 'V' shape into your toe nails, you can prevent 'in-grown' toe nails.
22
We blink 25 times a minute.
51
A person will burn 7 percent more calories if they walk on hard dirt compared to pavement.
45
Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
18
Brain scans show that people who view photos of a beloved experience an activation of the caudate - the part of the brain involving cravings.
103
It is possible to go blind from smoking too heavily.
50
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197