Enamel is hardest substance in the human body.
61
There are more bacteria in your mouth than there are people in the world.
60
The first patented condom was meant to be reused!
47
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
Laughing could dramatically improve your health – and be as good for you as a deep state of meditation, researchers have found.
28
The average human body contains enough fat to make seven bars of soap.
45
In one day, adult lungs move about 10,000 litres of air.
11
Fingernails grow nearly 4 times faster than toenails.
31