It takes approximately 12 hours for food to entirely digest.
93
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
The largest cell in the human body is the female egg and the smallest is the male sperm.
682
Early American humans hunted car-size armadillos and used their shells for houses.
12
One human hair can support 3 ounces.
191
Research has determined that most people are happiest at 7:26pm on a Saturday night.
69
Modern humans first appeared about 200,000 years ago, but record keeping didn't begin until about 6,000 years ago. That means about 97% of human history is lost.
21
The human brain uses approximately as much energy as a 10 watt light bulb.
120