From 1999/2000 to 2011/2012, exposure to secondhand smoke among nonsmoking adult cancer survivors declined from 39.6 percent to 15.7 percent, but rates of exposure were higher among those with a history of a smoking-related ...
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San Francisco city supervisors unanimously approved a measure Tuesday that bans the sale of flavored nicotine-laced liquid used in electronic cigarettes and flavored tobacco products—with city supervisors saying nicotine ...
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How teenagers perceive their appearance, including their body image, can have significant impacts on health and wellness. Prior body image research has shown that people with negative body image are more likely to develop ...
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(HealthDay)—Nearly two-thirds of U.S. teens support raising the minimum age for purchasing tobacco products to 21 years old, new research finds.
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Tobacco use among American middle and high school students—especially electronic cigarette use—declined sharply in 2016 from the year before following several years of strong growth, according to a study out Thursday.
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A study by chemists at the University of Connecticut offers new evidence that electronic cigarettes or e-cigarettes are potentially as harmful as tobacco cigarettes.
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My last column, reported on the huge growth of Australians using roll-your-own tobacco in the past few years. Because of a tobacco tax anomaly, which will end in September this year, many smokers have migrated to roll-your-own ...
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Waterloo, Ontario: Tobacco-specific nitrosamines (TSNAs) are potent carcinogens formed predominantly during the cigarette manufacturing process. Despite initial success lowering TSNA levels in cigarettes sold in Canada, following ...
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The regulatory approaches to marijuana and tobacco in the United States are on decidedly different paths and, according to researchers from the U.S. and Australia, neither side appears interested in learning from the other.
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(HealthDay)—Babies born to women who smoked as few as 10 cigarettes are more apt to have thinking and learning problems later, a new study suggests.
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Tobacco is an agricultural product processed from the fresh leaves of plants in the genus Nicotiana. It can be consumed, used as an organic pesticide, and in the form of nicotine tartrate it is used in some medicines. In consumption it most commonly appears in the forms of smoking, chewing, snuffing, or dipping tobacco, or snus. Tobacco has long been in use as an entheogen in the Americas. However, upon the arrival of Europeans in North America, it quickly became popularized as a trade item and as a recreational drug. This popularization led to the development of the southern economy of the United States until it gave way to cotton. Following the American Civil War, a change in demand and a change in labor force allowed for the development of the cigarette. This new product quickly led to the growth of tobacco companies until the scientific controversy of the mid-1900s.
There are many species of tobacco, which are all encompassed by the plant genus Nicotiana. The word nicotiana (as well as nicotine) was named in honor of Jean Nicot, French ambassador to Portugal, who in 1559 sent it as a medicine to the court of Catherine de Medici.
Because of the addictive properties of nicotine, tolerance and dependence develop. Absorption quantity, frequency, and speed of tobacco consumption are believed to be directly related to biological strength of nicotine dependence, addiction, and tolerance. The usage of tobacco is an activity that is practiced by some 1.1 billion people, and up to 1/3 of the adult population. The World Health Organization reports it to be the leading preventable cause of death worldwide and estimates that it currently causes 5.4 million deaths per year. Rates of smoking have leveled off or declined in developed countries, however they continue to rise in developing countries.
Tobacco is cultivated similar to other agricultural products. Seeds are sown in cold frames or hotbeds to prevent attacks from insects, and then transplanted into the fields. Tobacco is an annual crop, which is usually harvested in a large single-piece farm equipment. After harvest, tobacco is stored to allow for curing, which allow for the slow oxidation and degradation of carotenoids. This allows for the agricultural product to take on properties that are usually attributed to the "smoothness" of the smoke. Following this, tobacco is packed into its various forms of consumption which include smoking, chewing, sniffing, and so on.
This text uses material from Wikipedia, licensed under CC BY-SA
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