Despite dire health warnings, one out of five Americans still smokes. If you\u2019re one of them, here are some new reasons to crush that butt.\nBefore you light up your next cigarette, consider this: With every puff, you\u2019re inhaling more than 7,000 chemicals!\nHundreds of them are poisonous, and about 70 can cause cancer. And no organ or tissue in the body is immune to this toxic cloud.\nMost people know that cancer, heart disease, and lung disease are major health threats caused by smoking. But are you aware that smoking increases your risk of getting diabetes by 44 percent?\nThat\u2019s just one of the not-so-obvious reasons to put that butt out.\nFive More Reasons to Quit Smoking\n\nSee the difference. If you smoke, your risk of age-related macular degeneration, a leading cause of blindness, doubles. Smokers also have double the risk of developing cataracts.\nHeal better. Smoking weakens the body\u2019s ability to heal from surgery, disease, broken bones, and even minor back strains.\nNow hear this. Smokers are more likely to develop hearing loss. Exposure to secondhand smoke also puts former smokers and nonsmokers at risk.\nStand tall. Smoking weakens bones and raises the risk of osteoporosis and hip fractures in men and women.\nKeep your head. If your mind is cloudy, smoking may be the culprit. It\u2019s been linked to memory problems and poor reasoning skills in middle-aged smokers.\n\nIf you\u2019re among the eight out of 10 smokers who want to quit, talk to your primary care doctor. To locate a doctor in your area, visit the UPMC Find a Doctor website or call toll-free 1-800-533-UPMC (8762).