Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111
Enamel is hardest substance in the human body.
61
Yawns are more contagious among people with closer relationships.
163
The average sperm cell swims at 8 inches per hour.
76
The average person's skin weighs twice as much as their brain.
131
Chewing gum boosts your brain power.
285
The human body contains over a billion miles of DNA.
147
Dogs can be trained to identify the scent of lung cancer long before symptoms develop.
190