It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
You see your nose at all times, your brain just chooses to ignore it.
30
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
A person can live without food for about a month, but only about a week without water.
156
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197