There are times when you're walking that the pressure on your feet exceeds your body weight, and when you're running, it can be three or four times your weight.
62
Male hospital patients fall out of bed twice as often as female hospital patients.
71
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
Fingernails grow fastest on the hand you favor.
44
The right lung takes in more air than the left.
30
A person will burn 7 percent more calories if they walk on hard dirt compared to pavement.
45
The average sperm cell swims at 8 inches per hour.
76
There's 100 trillion good bacteria living in your body.
17