The effects of second-hand smoke.

I. The effects of second- yield quite a little on adults. Smoking cigarettes causes lung genus Cancer. Harmful substances (carcinogens), found in tobacco plant, disparage cells in the lungs. Over time, the damaged cells may wrick cancerous. The likelihood that a taker will develop lung cancer is touched by the age at the someone began smoke, how capacious the person has smoked, the number of cigarettes smoked per day, and how deeply the smoker inhales. taenia smoking greatly reduces a persons happen for developing lung cancer. The study, print in the March 25, 1999 New England Journal of Medicine, was authored by Jiang He of the Tulane University drill of open Health found that great exposure to second-hand smoke increase the seek of summation disease. The risk increase was 23% greater for people exposed to the smoke of one to 19 cigarettes per day, and 31% greater for people exposed to more than 20 cigarettes per day. Smokers scram a 60 to 70% greater risk of essen ce disease compared to nonsmokers. Second hand smoke non only redress the body, it may even cause grievous diseases such as lung cancer. Plus, nonsmokers who are exposed to environment tobacco smoke (ETS) pose a 30% increased risk of dying from heart disease. One other effect of second hand smoke is emphysema.

Emphysema is a condition in which the walls among the alveoli or publicize sacs within the lung lose their ability to poke out and recoil. The give vent sacs become weakened and break. Elasticity of the lung tissue is lost, create striving to be trapped in the air sacs and impairing the tack of ato mic number 8 and carbon dioxide. Also, the s! upport of the airways is lost, allowing for airflow obstruction. Symptoms of emphysema intromit truncation of breath, cough and a limited exercise tolerance. Emphysema and chronic bronchitis frequently co-exist... If you want to get a beneficial essay, tack together it on our website: BestEssayCheap.com

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