It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
A person can live without food for about a month, but only about a week without water.
156
The average sperm cell swims at 8 inches per hour.
76
The average person's skin weighs twice as much as their brain.
131
In Ancient Greece, small penises were desirable, and big ones were for ‘old men and barbarians’
22
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 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
198
