If you were to roll a lung from a human body and out flat it would be the size of a tennis court.
36
It is possible to go blind from smoking too heavily.
50
Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
18
Dating back to the 1600's, thermometers were filled with Brandy instead of mercury.
16
Your ears secrete more earwax when you are afraid than when you aren't.
229
40% of all indigestion remedies sold in the world are bought by Americans.
8
Redheads require up to 20% more anesthesia to be knocked out.
112