A person will burn 7 percent more calories if they walk on hard dirt compared to pavement.
45
Your heart rate can rise as much as 30% during a yawn.
69
Banging your head against a wall uses 150 calories an hour.
57
There are about 1,400 different species of bacteria in your belly button.
10
20 minutes after smoking a cigarette, blood pressure drops to normal.
37
Dating back to the 1600's, thermometers were filled with Brandy instead of mercury.
16
Unconsciousness will occur after 8-10 seconds after loss of blood supply to the brain.
93