A man's beard grows fastest when he anticipates sex.
239
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.
62
On average, there's 100 billion neurons in the human brain.
83
The human brain has the capacity to store everything that you experience.
4k
In one day, adult lungs move about 10,000 litres of air.
11
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
