Every year your body replaces 98% of your atoms.
119
A fetus develops fingerprints at eighteen weeks!
32
The average person who stops smoking requires one hour less sleep a night.
79
The average sperm cell swims at 8 inches per hour.
76
Household bleach is the recommended chemical to decontaminate people exposed to the anthrax virus, by the U.S. F.D.A.
16
A woman's sense of smell is most sensitive during ovulation.
34
The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
21