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History of tobacco
History of in the United States 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.[1] The effects of tobacco on human health is significant depending on the method of which it used and the amount. Of the various methods of consumption the primary health risks pertain to diseases of the cardiovascular system by the vector of smoking, which overtime allows high quantaties of carcinogens to deposit in the mouth, throat, and lungs. 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.[2][3] The usage of tobacco, is an activity that is practiced by some 1.1&_160;billion people, and up to 1/3 of the adult population.[4] It is believed to be the second leading cause of death worldwide.[5] Rates of smoking has 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.
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