Essay on banning smoking in public places Cigarette smoking is a major cause of heart attack, stroke and lung cancer. Each year it causes so many deaths and still people carry on smoking as if it was good for them. Tobacco smoke contains over 4,000 chemicals which intoxicate the lungs so much the lungs become hideously inefficient. The tar coats the inside of the lungs: this prevents the lungs getting rid of unwanted bacteria. The tar contains carcinogens which can cause lung cells to mutate to form the lung cancer, a few years back people didn’t know this for
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