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Nicotine
Over 1,000 different substance all in them
Tar.
Heavy cigarette smoking causes about 80-90% of all emphysema cases
There is never a safe way to smoke a cigarette. Smoking causes a variety of health problems including lung cancer, emphysema, stroke, and bronchitis.
Nicotine
Cigarette smoking, on a chronic long-term basis, is the chief cause of emphysema (COPD, or chronic obstructive pulmonary disease). There are many other causes, including the various pneumoconioses.
Cardiovascular diseases, breast cancer, ovarian cancer, cervical cancer, uterine cancer, strokes, emphysema, accidents, gastric ulcers, diabetes.
Smoking causes stroke, lung cancer, throat cancer, tumors, oral cancer, emphysema, blindness, heart attack, and other diseases.
the flour can kill u because what if its old
True
carcinogen