News tagged with tobacco

Related topics: tobacco use , smokers , smoking , cigarettes , food and drug administration

Graphic photos on tobacco packs save lives: WHO report

Large, graphic health warnings on tobacco packets in China would increase awareness about the harms of smoking, help to cut smoking rates, and in doing so save lives according to global studies. These are the key findings ...

Apr 08, 2014
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Spike in US poison calls over e-cigarettes (Update)

The number of calls to US poison control centers about accidents with bottles of liquid nicotine for refilling e-cigarettes—many involving children—has spiked in recent years, health authorities said Thursday.

Apr 03, 2014
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Tobacco promotions still reaching youth

Teens and young adults who are exposed to marketing materials for tobacco products, such as coupons and websites, were far more likely to begin smoking or to be current smokers than those not exposed, finds ...

Apr 02, 2014
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Internet, social media expose youth to tobacco

(Medical Xpress)—Tobacco companies are barred by law from advertising their products to children, but researchers at Washington University School of Medicine in St. Louis have found that many teens and ...

Apr 01, 2014
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Tobacco

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