If you hold farts in during the day, they'll just come out when you sleep.
16
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
12
One human hair can support 3 ounces.
191
An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
73
The human body contains over a billion miles of DNA.
147
A human being loses an average of 40 to 100 strands of hair a day.
133