The human body contains over a billion miles of DNA.
147
There are about 1,400 different species of bacteria in your belly button.
10
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
19
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
There's 100 trillion good bacteria living in your body.
17
If you hold farts in during the day, they'll just come out when you sleep.
16
The human brain uses approximately as much energy as a 10 watt light bulb.
120
Fingers prune underwater not because of them absorbing the water or washing away the oil, but because of an evolutionary trait caused by the brain to enhance the grip of your fingers underwater.
24