The human sigh acts as a physiological reset button.
23
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
The average sperm cell swims at 8 inches per hour.
4
20 minutes after smoking a cigarette, blood pressure drops to normal.
37
Sex burns about 360 calories per hour.
860
Nearly 80 percent of all sudden cardiac arrests happen at home.
7
Dogs can be trained to identify the scent of lung cancer long before symptoms develop.
190
Most lipstick contains fish scales.
37