If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
22
If you hold farts in during the day, they'll just come out when you sleep.
16
There's 100 trillion good bacteria living in your body.
17
A person can live without food for about a month, but only about a week without water.
156
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
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
