The human body contains over a billion miles of DNA.
147
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
22
The levels of two stress hormones, cortisol and epinephrine which suppress the body's immune system, will actually drop after a dose of laughter.
112
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
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
19
The average person's skin weighs twice as much as their brain.
131
