The human brain uses approximately as much energy as a 10 watt light bulb.
120
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
21
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
12
The human sigh acts as a physiological reset button.
23
You see your nose at all times, your brain just chooses to ignore it.
30

