Following on from our extremely popular top 20 amazing science facts, we have produced another list of facts that are entertaining and educational. These are all facts that are (hopefully) not especially well known to the average person.

1. Fingernails grow four times faster than toenails

2. Right handed people live, on average, nine years longer than left-handed people

3. If you rub an onion on your foot – within 30 – 60 minutes you will be able to taste it – this is because it travels through the blood stream

4. You can’t kill yourself by holding your breath (if you hold it until you go unconscious, you begin to breath normally as soon as you do)