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Second-hand smoke is a mixture of smoke from the burning end of a cigarette and the smoke exhaled from the lungs of smokers. It is involuntarily inhaled, lingers in the air for hours after cigarettes have been extinguished, and can cause a wide range of adverse health effects, including cancer, respiratory infections , and asthma . [ 119 ]
This is an accepted version of this page This is the latest accepted revision, reviewed on 6 February 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 ...
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]
Tobacco smoke, besides being an irritant and significant indoor air pollutant, is known to cause lung cancer, heart disease, chronic obstructive pulmonary disease (COPD), emphysema, and other serious diseases in smokers (and in non-smokers as well). The actual mechanisms by which smoking can cause so many diseases remain largely unknown.
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.
Gallup surveys show that the percentage of U.S. adults who smoke cigarettes has reached a new low as of 2022, with a particularly staggering decline among 18- to 29-year-olds. However, other data ...
Canada, Australia, Thailand, Iceland, Colombia, Mexico, Brazil [85] and some EU countries have also imposed labels upon cigarette packs warning smokers of the effects, and they include graphic images of the potential health effects of smoking. In Canada, cards are also inserted into cigarette packs, explaining reasons not to smoke and different ...
Lady Gaga has quit smoking—but it sure as hell wasn't easy. During an interview with New Music Daily with Zane Lowe on Apple Music, Lady Gaga said, "I’m not smoking anymore, but I’d smoke 40 ...