Cigarette Smoking - Primary Risk Factor For Lung Cancer

Cigarette smoking is the principal risk factor for lung cancer. The cancer research shows that the danger of getting cancer of the lung is higher on the list of cigarette smokers than the nonsmokers. Compared to nonsmokers, smokers have a 20-fold danger of developing lung cancer. There are many bad effects of cigarette smoking that might result in chronic bronchitis, chronic obstructive pulmonary disease and cancer of lung. If you're a cigarette smoker, I advise you to offer some efforts to stop it now.

As we all know, the tobacco smoke is one of the carcinogens that produces the cancer, especially the lung cancer. The properties of tobacco smoke destruct lung tissue by inflammation and consequently inducing the cancer of lung. Cigarette smokers have lower degrees of lung function than nonsmoker, and quitting smoking greatly reduces cumulative risk for developing lung cancer. The chance of former smokers to produce cacer of lung increases during the first 3-5 years after smoking cessation. However, why they stop from smoking? Most of them is because of they are symptomatic and may already possess some critical diseases.

While active smoking has been demonstrated to be the main cause of lung cancer, second-hand smoke contains exactly the same carcinogens worse that are inhaled by smokers. Unfortunately, the second-hand smoke affects the nonsmokers too. Reactive oxygen species is one of the environmental chemicals that toxic to our body. During passive smoking, the human body is attacked by an excess of free radicals which inducing oxidative stress. Therefore, even a brief period of passive smoking will break down serum antioxidant defence of the nonsmoker.

Besides, the aspects of tobacco smoke also induce oxidative DNA damage. This oxidative DNA damage relates to an increased danger of developing several degenerative chronic diseases which include coronary heart problems and the dysfunctional cells (cancer).