It is possible to go blind from smoking too heavily.
50
Poor eyesight (myopia) is associated with higher IQ.
232
If you were to roll a lung from a human body and out flat it would be the size of a tennis court.
36
Our brains have a negativity bias and will remember bad memories more than good ones.
15
In older people, memory is best early in the morning and then declines during the late afternoon.
33
Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111
After an 11 year study, cell phones were shown not to increase chances of getting cancer.
14
The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
15