zoo opinion 6 - smoking of cigarettes can lead to chronic...

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Rachel Schwarz ZOO 161-AC Smoking and Lung Disease A once popular social habit, smoking has now been recognized as one of the greatest preventable causes of disability, disease, and ultimately death. Unfortunately, smoking is highly advertised and is legal for those who are 18 and over. Smoking causes maximum damage to the respiratory system, namely the lungs. The harm caused by inhaling cigarette smoke is slow and progressive. First, the cilia are paralyzed and destroyed by the nicotine, sulfur dioxide, and cyanide in the cigarette smoke. The macrophages, which engulf foreign particles and clean the lungs, are also paralyzed. Even worse, the passageways in the lungs become plugged with mucous, creating “smoker’s cough.” Persistent
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Unformatted text preview: smoking of cigarettes can lead to chronic bronchitis, emphysema, and lung cancer. Not surprisingly, around 85-90% of all cases of lung cancer are caused by smoking. Moreover, smoking of cigarettes is responsible for an estimated 30% of all reported deaths of cancer. It is imperative that those who smoke cigarettes quit for their personal benefit and for the benefit of those surrounding them. Quitting smoking will reduce the risk of cancer, disease, and death. Steps for abandoning the habit include setting a date to quit, enlisting encouragement from loved ones, and being prepared to overcome testing situations....
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This note was uploaded on 08/28/2011 for the course ZOO 161 taught by Professor Haynes during the Spring '08 term at Miami University.

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