In Ancient Greece, small penises were desirable, and big ones were for ‘old men and barbarians’
22
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
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 human brain doesn't stop developing until about 25 years old.
102
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197

