Search results
Results from the WOW.Com Content Network
Tar is the name for the resinous, combusted particulate matter made by the burning of tobacco and other plant material in the act of smoking.Tar is toxic and damages the smoker's lungs over time through various biochemical and mechanical processes. [1]
Among the 250 known harmful chemicals in tobacco smoke, at least 69 can cause cancer." [7] [2] [8] [9] See: Health effects of tobacco smoking and List of cigarette smoke carcinogens. Although many of these additives are used in making cigarettes, each cigarette does not contain all of these additives.
This is an accepted version of this page This is the latest accepted revision, reviewed on 1 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 ...
It is added to gum and hard lozenges used for nicotine replacement therapy in smoking cessation, such as in the Nicorette range of products. The use of the polymer as a delivery system maximizes the amount of nicotine released and absorbed by the oral mucosa . 80 to 90 percent of the nicotine released from the gum is absorbed by the mouth.
The health effects of tobacco had been debated by users, medical experts, and governments alike since its introduction to European culture. [1] Hard evidence for the ill effects of smoking became apparent with the results of several long-term studies conducted in the early to middle twentieth century, such as the epidemiology studies of Richard Doll and pathology studies of Oscar Auerbach.
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 ...
Continued use of nicotine may result in harmful effects to women's brains because it restricts estrogen signaling. [24] This could lead to making the brain more vulnerable to ischemia . [ 24 ] A 2015 review concluded that "Nicotine acts as a gateway drug on the brain, and this effect is likely to occur whether the exposure is from smoking ...
The health effects of e-cigarettes (e-cigarettes) are generally claimed to be less harmful than those of smoking, but worse than not smoking at all. However, health effects are a function of inhaled materials, of associated behavior changes (notably traditional cigarette smoking), of how and how often the products are used, over what period ...