There are about 1,400 different species of bacteria in your belly button.
10
The human brain uses approximately as much energy as a 10 watt light bulb.
120
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
A human being loses an average of 40 to 100 strands of hair a day.
133
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
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
