Fun Fitness Facts – II

11. Underwater swimming is the only time you should hold your breathe while exercising.
12. Your brain weight about 3 pounds, is a pinkish gray color and is about the size of a cauliflower.
13. Your tongue is the only muscle in your body that is attached at only one end.
14. The three bones of the middle ear are so small all three could easily fit on your thumbnail.
15. If all 600 muscles in your body pulled in one direction, you could lift 25 tons.
16. If the 300,000,000 tiny air sacs (alveoli) in your lungs could be laid out flat, they would cover a home swimming pool.
17. Tongue prints are as unique as fingerprints.
18. If you weight 100 pounds on earth, you will weigh about 264 pounds on Jupiter.
19. There are 206 bones in the human body. One fourth of them are in your feet.
20. The human body has 45 miles of nerves.