In one day, adult lungs move about 10,000 litres of air.
11
In Ancient Greece, small penises were desirable, and big ones were for ‘old men and barbarians’
22
Your heart will pump about 212 million liters in its lifetime.
26
The average sperm cell swims at 8 inches per hour.
76
Your body is creating and killing about 2.4 million red blood cells per second.
17
Our eyes are always the same size from birth, but our nose and ears never stop growing.
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