Your thumb is about the same size as your nose.
124
When you take a step, you are using up to 200 muscles.
886
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
Chewing gum boosts your brain power.
285
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 human brain uses approximately as much energy as a 10 watt light bulb.
120
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197