In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
199
A person can live without food for about a month, but only about a week without water.
156
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
The average person's skin weighs twice as much as their brain.
131
Within three days of death, the enzymes that once digested your food begin to eat you.
22
