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lung cancer


            Most Canadians are aware (at some level) that tobacco use is harmful to health. This information is now clearly marked on tobacco product packaging and, because of a growing awareness of the harmful effects of second-hand smokes; there are fewer and fewer public places where the use of tobacco products is allowed. .
             Some of the health consequences of tobacco use, or exposure to second-hand smoke, are:.
             An increased risk for developing cancer of the lungs, mouth, pharynx (throat), larynx (voice box), espophagus (tube from the mouth to the stomach), sinuses, thyroid gland, bladder, kidney, panceas, breast, uterus and cervix. .
             An increased risk for developing lung diseases such as bronchitis, emphysema and pneumonia. .
             A greater likelihood of impaired lung function and respiratory illness, including asthma, pneumonia and bronchitis, in the children of smokers. .
             A greater likelihood of heart disease, chronic middle ear infections and allergies in the children of smokers. .
             An increased risk for developing cardiovascular diseases as hardening of the arteries, reduced blood and oxygen flow to various parts and organs of the body, heart attack, high blood pressure and stroke. .
             An increased risk for miscarriage, stillbirth, premature birth or low birth weight babies .
             Increased levels of carbon monoxide and other toxic substances in the blood. .
             Physical addiction to nicotine and withdrawal symptoms (such as irritability, anxiety, insomnia, jitteriness, increased heart rate, and strong cravings) when the tobacco use is reduced or stopped. .
             Psychological addiction to tobacco products .
             Gum disease and staining of teeth .
             Eye, nose and throat irritation. .
             But why do smokers continue the bad habit even though they're aware of the health dangers and the social consequences of smoking? "There seems little doubt that smoking is an addiction. Nicotine is a powerful substance that increases the release of acetylcholine, norepinephrine, dopamine, and other neurotransmitters, which improve mental alertness, sharpen memory, and reduce tension and anxiety.


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