News tagged with tobacco

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

Smoking cannabis linked to respiratory problems

People who smoke cannabis as little as once a week are more likely to suffer respiratory symptoms such as morning cough, bringing up phlegm, and wheezing, according to University of Otago research.

May 19, 2015
popularity 56 comments 1

Beijing raises cigarette tax to deter smoking

China will more than double the tax on tobacco to 11 percent, the government announced Friday, as authorities try to deter smoking in the world's largest producer and consumer of tobacco.

May 08, 2015
popularity 13 comments 0

ACOG: Pregnant women may believe E-cigarettes OK

(HealthDay)—More than 40 percent of pregnant women surveyed think electronic cigarettes are less harmful than tobacco cigarettes, according to a new study. The results of the study are scheduled to be presented ...

May 04, 2015
popularity 23 comments 1

The ER docs said 'stop smoking,' and they did

An intervention in the emergency department designed to encourage tobacco cessation in smokers appears to be effective. Two and a half times more patients in the intervention group were tobacco-free three months after receiving ...

May 01, 2015
popularity 4 comments 0

Reducing global tobacco use

Although global efforts to cut tobacco use have had some success, more can be done to reduce the number of deaths from smoking, according to a commentary published in CMAJ (Canadian Medical Association Journal). ...

Apr 20, 2015
popularity 20 comments 0

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