The average human body contains enough iron to make a small nail.
50
Enamel is hardest substance in the human body.
61
Men have larger hearts; women's hearts beat faster.
77
Your skin is actually an organ.
88
You would need to smoke between 20,000-40,000 joints to be at risk of dying of a THC overdose.
12
Tap water in Canada is held to a higher health standard than bottled water.
19
In one day, adult lungs move about 10,000 litres of air.
11
Your skeleton keeps growing until you are about 35, then you start to shrink.
74