Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
The human brain has the capacity to store everything that you experience.
4k
When you get goosebumps and your hair stands, the hair helps to trap air, making you feel warmer by keeping in your body heat.
46
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
Poor eyesight (myopia) is associated with higher IQ.
232
Every year your body replaces 98% of your atoms.
119