You see your nose at all times, your brain just chooses to ignore it.
30
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
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
19
The human body contains over a billion miles of DNA.
147
When you get goosebumps and your hair stands, the hair helps to trap air, making you feel warmer by keeping in your body heat.
46
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
In Ancient Greece, small penises were desirable, and big ones were for ‘old men and barbarians’
22
Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
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