In one day, adult lungs move about 10,000 litres of air.
11
Pain travels through your body at 350 ft. per second.
36
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
About 400 different kinds of microbes live on and in the human body.
-3
Men have larger hearts; women's hearts beat faster.
77
Pain occurs when sounds are above 130 db.
124
One quarter of the bones in your body are in your feet!
36