It takes about 20 seconds for a red blood cell to circle the whole body.
102
After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
55
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
One quarter of the bones in your body are in your feet!
36
Women buy four out of every 10 condoms sold.
71
Male hospital patients fall out of bed twice as often as female hospital patients.
71
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
Wearing tight pants can lead to impotence in men.
120