Cigarette smoking remains the leading cause of death and illness among Americans. The Scientist's articles tagged with: cigarette smoking. Approximately one fifth of the deaths in the United States are attributable to smoking, and 28% of the smoking-attributable deaths involve lung cancer, 37% involve vascular disease, and 26% involve other respiratory diseases ( 1). Effects of smoking can cause cancers, emphysema, bronchitis, COPD, chronic cough, and more. Smoking cessation includes nicotine replacement therapy and behavioral therapy. Cigarette smoking, independently and synergistically with other risk factors such as hypertension and hypercholesterolemia, contributes to the development and promotion of the atherosclerotic process. Smoking cigarettes can affect the body in many ways, raising the risk of several serious health conditions. Smoking can cause harm throughout the body, including the heart, brain, and lungs. A small, in vitro study concludes that e-cigarette vapor harms macrophages taken from human lung tissue. Cigarette smoking, hereafter referred to as “smoking,” is the largest single risk factor for premature death in developed countries. Learn more about the effects of smoking cigarettes in this article. This article discusses why smoking is bad for health and reasons to quit.