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 human brain is more active during sleep than during the day.
28
The average sperm cell swims at 8 inches per hour.
76
Men get hiccups more often than women.
93
Wearing headphones for an hour increases the bacteria in your ear 700 times.
233
If your DNA was stretched out it would reach to the moon 6,000 times.
256
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
Taphephobia is the fear of being buried alive!
44