There's 100 trillion good bacteria living in your body.
17
Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111
Within three days of death, the enzymes that once digested your food begin to eat you.
22
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
12
One human hair can support 3 ounces.
191
The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
21