You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
17
In Ancient Greece, small penises were desirable, and big ones were for ‘old men and barbarians’
22
A person can live without food for about a month, but only about a week without water.
156
In one day, adult lungs move about 10,000 litres of air.
11
An Indian man known as "Snake Manu" can put small snakes, including deadly cobras, into his mouth and pass them out through his nose.
59
In 1996, research found that having excessive body hair is linked to higher intelligence.
23
The brain receives 20% of the body’s oxygen and 25% of total body glucose utilization, despite it accounting for only 2% of a person’s weight (about 1.4 kilograms).
8