The average person's skin weighs twice as much as their brain.
131
Enamel is hardest substance in the human body.
61
Poor eyesight (myopia) is associated with higher IQ.
232
One human hair can support 3 ounces.
191
Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
149
Yawns are more contagious among people with closer relationships.
163
If your DNA was stretched out it would reach to the moon 6,000 times.
256
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266