7. You are about 1cm taller in the morning when you first get up than when you go to bed. This is because during the day the soft cartilage between your bones gets squashed and compressed.

8. If you walked for 12 hours a day, it would take the average person 690 days to walk around the world.

9. The only muscle that never tires is the heart.

10. The entire surface of your skin is replaced every month, which put another way means you have about 1,000 different skins in your life!

11. The body has 2.5 million sweat pores.

12. Every minute you shed over 30,000 dead skin cells.