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This is an accepted version of this page This is the latest accepted revision, reviewed on 7 January 2025. Circumstances, mechanisms, and factors of tobacco consumption on human health "Health effects of smoking" and "Dangers of smoking" redirect here. For cannabis, see Effects of cannabis. For smoking crack cocaine, see Crack cocaine § Health issues. "Smoking and health" redirects here. For ...
The report's conclusions were almost entirely focused on the negative health effects of cigarette smoking. It found: cigarette smokers had a seventy percent increase in age-corrected mortality rate; cigarette smoke was the primary cause of chronic bronchitis; a correlation between smoking, emphysema, and heart disease. In addition, it reported:
Cigarette smoking increases the risk of Crohn's disease as well as the severity of the course of the disease. [98] It is also the number one cause of bladder cancer. Cigarette smoking has also been associated with sarcopenia, the age-related loss of muscle mass and strength. [99]
Cigarettes are known to cause many lung diseases including emphysema, chronic bronchitis, and lung cancer. Smoker's macrophages are alveolar macrophages whose characteristics, including appearance, cellularity, phenotypes, immune response, and other functions, have been affected upon the exposure to cigarettes. [1]
The consumption of tobacco products and its harmful effects affect both smokers and non-smokers, [9] and is a major risk factor for six of the eight leading causes of deaths in the world, including respiratory diseases, cardiovascular diseases, cerebrovascular diseases, periodontal diseases, teeth decay and loss, over 20 different types or subtypes of cancers, strokes, several debilitating ...
The harms caused by inhaling tobacco smoke include diseases of the heart and lungs, with smoking being a major risk factor for heart attacks, strokes, chronic obstructive pulmonary disease (emphysema), and cancer (particularly cancers of the lungs, larynx, mouth, and pancreas). Cancer is caused by inhaling carcinogenic substances in tobacco smoke.
According to the Centers for Disease Control and Prevention (CDC), 12.6% of people ages 25 to 44 smoke cigarettes, making them the second-highest group of smokers after the 45 to 64 age category.
Smoking is a practice in which a substance is combusted and the resulting smoke is typically inhaled to be tasted and absorbed into the bloodstream of a person. Most commonly, the substance used is the dried leaves of the tobacco plant, which have been rolled with a small rectangle of paper into an elongated cylinder called a cigarette.