It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
Your body is creating and killing about 2.4 million red blood cells per second.
17
The human sigh acts as a physiological reset button.
23
Our eyes are always the same size from birth, but our nose and ears never stop growing.
269
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
There are about 1,400 different species of bacteria in your belly button.
10