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.
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In Ancient Greece, small penises were desirable, and big ones were for ‘old men and barbarians’
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A person can live without food for about a month, but only about a week without water.
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Our eyes are always the same size from birth, but our nose and ears never stop growing.
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An Indian man known as "Snake Manu" can put small snakes, including deadly cobras, into his mouth and pass them out through his nose.
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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.
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Your body is creating and killing about 2.4 million red blood cells per second.
17