Poor eyesight (myopia) is associated with higher IQ.
232
A human being loses an average of 40 to 100 strands of hair a day.
133
Yawns are more contagious among people with closer relationships.
163
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
Due to the angle at which the optic nerve enters the brain, staring at a blue surface during sex greatly increases the intensity of orgasms.
252
Enamel is hardest substance in the human body.
61
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
Our Right Lungs takes more air than our left lung.
194