The average office desk has 400 times more bacteria than a toilet.
22
Your heart rate can rise as much as 30% during a yawn.
69
Perspiration is odorless; it is the bacteria on the skin that creates an odor.
39
Sex burns about 360 calories per hour.
860
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
12
The average sperm cell swims at 8 inches per hour.
76