Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
Chewing gum boosts your brain power.
285
The average sperm cell swims at 8 inches per hour.
76
Enamel is hardest substance in the human body.
61
One human hair can support 3 ounces.
191
Yawns are more contagious among people with closer relationships.
163
The human body contains over a billion miles of DNA.
147