If you were to roll a lung from a human body and out flat it would be the size of a tennis court.
36
There is a disease called ichthyosis that turns the skin scaly like a fish.
90
In Japan, condoms are commonly sold 'door to door'!
54
Unlike dogs, pigs, and some other mammals, humans cannot taste water. They taste only the chemicals and impurities in the water.
95
Enamel is hardest substance in the human body.
61
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
Sitting straight upright in your chair is bad for your back. You should instead slouch at an angle of 135 degrees.
10
The average person who stops smoking requires one hour less sleep a night.
79