One human hair can support 3 ounces.
191
Every year your body replaces 98% of your atoms.
119
Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
149
The human brain has the capacity to store everything that you experience.
4k
There are times when you're walking that the pressure on your feet exceeds your body weight, and when you're running, it can be three or four times your weight.
62
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
The average sperm cell swims at 8 inches per hour.
76