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    Smoking, primarily of tobacco, is an activity that is practiced by some 1.1 billion people, and up to 1/3 of the adult population. [104] The image of the smoker can vary considerably, but is very often associated, especially in fiction, with individuality and aloofness. [citation needed]

  2. Smoking tobacco introduces not only nicotine but also more than 5,000 chemicals, including numerous carcinogens (cancer-causing chemicals), into your lungs, blood and organs. The damage caused by smoking can shorten your lifespan significantly. In fact, smoking is the number one cause of preventable death in the United States.

    • Smoking and Death. Cigarette smoking is the leading cause of preventable death in the United States.1. Cigarette smoking causes more than 480,000 deaths each year in the United States.
    • Smoking and Increased Health Risks. Smokers are more likely than nonsmokers to develop heart disease, stroke, and lung cancer.1. Estimates show smoking increases the risk
    • Smoking and Cardiovascular Disease. Smokers are at greater risk for diseases that affect the heart and blood vessels (cardiovascular disease). Smoking causes stroke and coronary heart disease, which are among the leading causes of death in the United States.
    • Smoking and Respiratory Disease. Smoking can cause lung disease by damaging your airways and the small air sacs (alveoli) found in your lungs. Lung diseases caused by smoking include COPD, which includes emphysema and chronic bronchitis.
  3. Sep 27, 2022 · smoking, the act of inhaling and exhaling the fumes of burning plant material. A variety of plant materials are smoked, including marijuana and hashish, but the act is most commonly associated with tobacco as smoked in a cigarette, cigar, or pipe. Tobacco contains nicotine, an alkaloid that is addictive and can have both stimulating and tranquilizing psychoactive effects. The smoking of ...

  4. Jan 25, 2019 · Remember, there is no safe level of tobacco use. Smoking even just one cigarette per day over a lifetime can cause smoking-related cancers and premature death. Quitting smoking can reduce your risk of health problems. The earlier you quit, the greater the benefit. Some immediate benefits of quitting include:

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  6. Health Effects. Smoking leads to disease and disability and harms nearly every organ of the body. More than 16 million Americans are living with a disease caused by smoking. For every person who dies because of smoking, at least 30 people live with a serious smoking-related illness. Smoking causes cancer, heart disease, stroke, lung diseases ...

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