| The swine flu vaccine in 1976 caused more death and illness than the disease it was intended to prevent |
| Caffeine increases the power of aspirin and other painkillers, that is why it is found in some medicines. |
| On average, a person has two million sweat glands |
| All babies are colour blind when they are born |
| The amniotic fluid that surrounds a baby in the womb is completely replaced every three hours |
| The most common disease in the world is tooth decay |
| Your left lung is smaller than your right lung to make room for your heart |
| Until babies are six months old, they can breathe and swallow at the same time |
| Synesthesia is a rare condition in which the senses are combined. Synesthetes see words, taste colors and shapes and feel flavors |
| Onions help reduce cholesterol if eaten after a fatty meal |