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
Enamel is hardest substance in the human body.
61
When you look up at the blue sky and see white dots flying around, you’re actually seeing your own white blood cells.
30
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
A study in the UK states that men need at least two "guys nights out" each week to stay healthy.
5
Women buy four out of every 10 condoms sold.
71
Oenophobia is the Fear of wines.
28
