In one day, adult lungs move about 10,000 litres of air.
11
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
A human being loses an average of 40 to 100 strands of hair a day.
133
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
12
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
19
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