Poor eyesight (myopia) is associated with higher IQ.
232
Enamel is hardest substance in the human body.
61
Chewing gum boosts your brain power.
285
The average sperm cell swims at 8 inches per hour.
76
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
An Indian man known as "Snake Manu" can put small snakes, including deadly cobras, into his mouth and pass them out through his nose.
59