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
Enamel is hardest substance in the human body.
61
One human hair can support 3 ounces.
191
If you are cold you are more likely to be hungry because you use energy to keep warm.
143
The largest cell in the human body is the female egg and the smallest is the male sperm.
682