In one day, adult lungs move about 10,000 litres of air.
11
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
Within three days of death, the enzymes that once digested your food begin to eat you.
22
A person can live without food for about a month, but only about a week without water.
156
The human sigh acts as a physiological reset button.
23
There's 100 trillion good bacteria living in your body.
17
The human brain doesn't stop developing until about 25 years old.
102