Poor eyesight (myopia) is associated with higher IQ.
232
Chewing gum boosts your brain power.
285
Yawns are more contagious among people with closer relationships.
163
When you take a step, you are using up to 200 muscles.
885
The average person's skin weighs twice as much as their brain.
131
It takes about 20 seconds for a red blood cell to circle the whole body.
102
Enamel is hardest substance in the human body.
61
