The average sperm cell swims at 8 inches per hour.
76
If you are cold you are more likely to be hungry because you use energy to keep warm.
143
Your body is creating and killing about 2.4 million red blood cells per second.
17
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
The average person's skin weighs twice as much as their brain.
131
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31
The human sigh acts as a physiological reset button.
23