A person can live without food for about a month, but only about a week without water.
156
There are about 1,400 different species of bacteria in your belly button.
10
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
Within three days of death, the enzymes that once digested your food begin to eat you.
22
The brain receives 20% of the body’s oxygen and 25% of total body glucose utilization, despite it accounting for only 2% of a person’s weight (about 1.4 kilograms).
8
Your heart will pump about 212 million liters in its lifetime.
26
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
12