If you hold farts in during the day, they'll just come out when you sleep.
16
One human hair can support 3 ounces.
191
The human body contains over a billion miles of DNA.
147
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
17
It is possible for you to survive even after the removal of the spleen, the stomach, one kidney, one lung, 75% of the liver, 80% of the intestines, and almost every organ from the pelvic and groin area.
218
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118