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
Chewing gum boosts your brain power.
285
In older people, memory is best early in the morning and then declines during the late afternoon.
33
Enamel is hardest substance in the human body.
61
Perspiration is odorless; it is the bacteria on the skin that creates an odor.
39
The heart pumps about 1 million barrels of blood during an average lifetime!
30
The levels of two stress hormones, cortisol and epinephrine which suppress the body's immune system, will actually drop after a dose of laughter.
112
A study in the UK states that men need at least two "guys nights out" each week to stay healthy.
5