If you hold farts in during the day, they'll just come out when you sleep.
16
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
32
The human sigh acts as a physiological reset button.
23
In one day, adult lungs move about 10,000 litres of air.
11
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
There's 100 trillion good bacteria living in your body.
17
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
12