Explain how tobacco smoke can be harmful to the body.

Lung diseases ,COPD, which includes emphysema and chronic bronchitis are caused by tobacco smoking. Cigarette smoking causes most cases of lung cancer. If you have asthma, tobacco smoke can trigger an attack or make an attack worse. Smokers are 12 to 13 times more likely to die from COPD than nonsmokers. Tobacco destroys your organs and leads to cancer. These diseases are harmful to the body.

bronchitis chronic, irreversible respiratory disease BPCO, pulmonary emphysema, tongue cancer, bladder, shortness of breath, lung cancer, respiratory tract, angina pectoris, smoking promotes tooth decay, it yellow teeth, inflammatory disease, allergic disease , more than 20 000 people die of lung cancer.