If your stomach didn't produce a new layer of mucous every two weeks, it would digest itself.
33
The human brain uses approximately as much energy as a 10 watt light bulb.
120
When you get blackout drunk, you don't actually forget anything; your brain wasn't "recording" in the first place.
23
Although African-Americans make up only 13% of the U.S. population, they accounted for one half of the estimated new HIV/AIDS diagnoses in 2004.
70
Human hair and fingernails continue to grow after death.
7
The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
15
There are about 1,400 different species of bacteria in your belly button.
10
