If your stomach didn't produce a new layer of mucous every two weeks, it would digest itself.
33
Only 1% of bacteria cause disease.
45
The human heart creates enough pressure to squirt blood 30 ft.
37
When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
It has been shown that caffeine causes headaches when stopped suddenly and can cause morning headaches that are relieved by a dose of caffeine.
101
Human thigh bones are stronger than concrete!
63
Your tongue is the only muscle in your body that is attached at only one end.
173
In one day, adult lungs move about 10,000 litres of air.
11