An open window does not save from cigarette smoke 0 Cigarette smoking is one of the major risk factors for disease and premature death worldwide. Moreover, the influence of both smoking itself and passive smoking is equally harmful, when other people are forced to breathe cigarette smoke. Studies show that even short-term exposure to cigarette smoke is harmful, as it contains about 7,000 different chemicals, more than 70 of which are carcinogenic and can cause cancer. Smokers are also relatively more likely to suffer from heart attacks, strokes, and lung diseases, among other diseases. Cigarette smoke is especially harmful to children's immunity because their bodies are still developing. Eve... [Read more]