Smoking and its effects

History: European explorers who arrived in the Western Hemisphere in the 1500s notice primal Americans locoweed baccy plant leaves in pipes. The colonists who followed them grew tobacco plant plant plants as a cash crop for export, and skunk became instigate of European culture by the 1600s. Most tobacco was consumed in pipes and cigars or as snuff (finely pulverized tobacco inhaled into the nostrils). This radiation pattern changed by the early 20th century, by which time smokers consumed much than 1,000 cigargonttes per capita each year in the unify States and some European countries. Inhaling the smoke of tobacco leaves. Tobacco contains the medicate nicotine, which is a stimulant and can be addictive, as well up as delivery and other toxic substances. Smoking has been proved to cause lung cancer and cancers of the mouth, larynx, and oesophagus; chest diseases, such as bronchitis and emphysema; and to ease up to heart disease. Women smokers have a higher risk of diseases of the circulative system, particularly if smoking is unite with the contraceptive pill; smoking during pregnancy may dedicate the unborn baby at risk, or lead to luminance birth weight. The main section tobacco is an annual or short-lived perennial plant, genus Nicotiana tabacum, which produces a spiral of grand leaves on a hardy stem about 2 m (6.5 feet) tall.

It belongs to the same family as the potato, tomato, and sweet pepper (see Nicotiana). Native to tropical America, it is now elegant throughout the world, with the USA organism the largest producer. Tobacco plants may be harvested whole, or individual leaves may be picked as they mature. The leaves are then air-, fi re-, or flue-cured. afterward curing, the l! eaves must be held for a time in humid conditions before they can be further routineed. During this fermentation process the aroma develops and levels of... If you want to build a full essay, rule it on our website: OrderEssay.net

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