In Ancient Greece, small penises were desirable, and big ones were for ‘old men and barbarians’
22
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
The human sigh acts as a physiological reset button.
23
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
The average person's skin weighs twice as much as their brain.
131
There's 100 trillion good bacteria living in your body.
17
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217