Fingernails grow fastest on the hand you favor.
44
A sneeze can travel as fast as 100 miles per hour.
43
Bearing a male child can alter a woman's brain by leaving male DNA that can persist for the rest of her life, making her less likely to suffer from Alzheimer's disease, promote tissue repair, and improve her immune system.
16
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
Most lipstick contains fish scales.
37
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
Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
149
In older people, memory is best early in the morning and then declines during the late afternoon.
33