Poor eyesight (myopia) is associated with higher IQ.
232
Yawns are more contagious among people with closer relationships.
163
The average person's skin weighs twice as much as their brain.
131
When you take a step, you are using up to 200 muscles.
886
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
Enamel is hardest substance in the human body.
61
The human body contains over a billion miles of DNA.
147
Every year your body replaces 98% of your atoms.
119