The average person's skin weighs twice as much as their brain.
131
Chewing gum boosts your brain power.
285
Yawns are more contagious among people with closer relationships.
163
The human body contains over a billion miles of DNA.
147
Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
If you are cold you are more likely to be hungry because you use energy to keep warm.
143