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Across 1. MAIN RECOURSE THAT PUMPS BLOOD. 5. STRETCHING 8. a band or bundle of fibrous tissue in a human or animal body that has the ability to contract, producing movement in or maintaining the position of parts of the body. 10. PUMPED AROUND BY THE HEART THROUGH VEINS. 11. AEROBIC 13. BEING FIT. 15. CARBON 16. a special form or variety of this liquid, as rain. 17. THIS IT THE AIR WE BREATHE. 18. a particular selection of food, especially as designed or prescribed to improve a person's physical condition or to prevent or treat a disease.

Down 2. a reverse movement or tendency; an action in a reverse direction or manner. 3. pertaining to the science of dynamics. 4. hysical suffering or distress due to injury, illness ECT. 6. BOMB OR GRENADE. 7. POWER 9. STAMINA 12. The movable or fixed place or part where two bones or elements of a skeleton join. 14. USED TO WIN RUNNING RACES.