The average person's skin weighs twice as much as their brain.
131
A person can live without food for about a month, but only about a week without water.
156
Every time you sneeze some of your brain cells die.
113
Your spit has a painkiller 6 times stronger than morphine. It contains a substance called opiorphin that is stronger than morphine.
39
Your body is creating and killing about 2.4 million red blood cells per second.
17
Most dreams last only 5 to 20 minutes.
79
Your skin is actually an organ.
88
The heart pumps about 1 million barrels of blood during an average lifetime!
30