The “cheerleader effect”, the theory that girls look more attractive in groups, is scientifically proven.
8
Yawns are more contagious among people with closer relationships.
163
Blonde hair is not exclusive to Europeans. Melanesians of the south Pacific evolved a different gene for blonde hair.
7
A study had men report their own penis size, and the average was found to be 6.1-6.5 inches. A subsequent clinical study actually measured penises, and found the average size to be 5.1-5.7 inches.
-3
Infants spend more time dreaming than adults do.
102
The average person walks the equivalent of twice around the world in a lifetime
69
Males sweat 40% more than females.
104