1. diaphragm 2. the lungs 3a. carbon dioxide 3b. ciculatory system 4. the respitory stsem. 5. Tissues 6. capilaries 7. inhale
8. body systems 9. blood cells. 10. organs 11. the skeletal system. 12. arteries 13. oxygen 14. muscular system. 15. Alveoli 16. exhale 17. the heart. 18. veins
The one that could be most closely associated with you health is exercise
Well, they most likely start because of pressure, then it leads to addiction.
There isn't anything to choose from.