Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
Poor eyesight (myopia) is associated with higher IQ.
232
The human brain doesn't stop developing until about 25 years old.
102
One human hair can support 3 ounces.
191
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
Every year your body replaces 98% of your atoms.
119
The average person's skin weighs twice as much as their brain.
131