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
In older people, memory is best early in the morning and then declines during the late afternoon.
33
Redheads require up to 20% more anesthesia to be knocked out.
112
Sitting straight upright in your chair is bad for your back. You should instead slouch at an angle of 135 degrees.
10
The average office desk has 400 times more bacteria than a toilet.
22
A third of the human population sneezes when they look at the Sun. Light can signal the ocular nerve near the sinuses and triggers a sneeze.
18
The chemicals indole and skatole, which help to account for the particular smell of human feces, are used as ingredients in perfume!
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