Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
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
The average sperm cell swims at 8 inches per hour.
76
When you get goosebumps and your hair stands, the hair helps to trap air, making you feel warmer by keeping in your body heat.
46
In one day, adult lungs move about 10,000 litres of air.
11
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
Fingers prune underwater not because of them absorbing the water or washing away the oil, but because of an evolutionary trait caused by the brain to enhance the grip of your fingers underwater.
24