The human brain is more active during sleep than during the day.
28
Unconsciousness will occur after 8-10 seconds after loss of blood supply to the brain.
93
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
Pain occurs when sounds are above 130 db.
124
Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111
Early American humans hunted car-size armadillos and used their shells for houses.
12