If you hold farts in during the day, they'll just come out when you sleep.
16
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
19
A person can live without food for about a month, but only about a week without water.
156
A human being loses an average of 40 to 100 strands of hair a day.
133
An Indian man known as "Snake Manu" can put small snakes, including deadly cobras, into his mouth and pass them out through his nose.
59
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
The levels of two stress hormones, cortisol and epinephrine which suppress the body's immune system, will actually drop after a dose of laughter.
112