During a typical human life span, the human heart will beat approximately 2.5 billion times.
21
It is possible to go blind from smoking too heavily.
50
Deep Breathing gives you health benefits similar to aerobics.
39
A hard working adult sweats up to 4 gallons per day. Most of the sweat evaporates before a person realizes it's there, though!
25
The human brain uses approximately as much energy as a 10 watt light bulb.
120
Your stomach produces a new layer of mucus every two weeks so that it doesn't digest itself.
160
