If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
22
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
Held in farts enter your bloodstream and are bad for your body.
26
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
If you hold farts in during the day, they'll just come out when you sleep.
16
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217