Smoking and its effects

History: European explorers who arrived in the Western Hemisphere in the 1500s notice indigen Americans locoweed baccy plant leaves in pipes. The colonists who followed them grew tobacco plants as a cash crop for export, and smoking 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 joined States and some European countries. Inhaling the smoke of tobacco leaves. Tobacco contains the medicine nicotine, which is a stimulant and can be addictive, as easily as delivery and other toxic substances. Smoking has been turn out 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 feature with the contraceptive pill; smoking during pregnancy may establish the unborn baby at risk, or lead to visible radiation birth weight. The main section tobacco is an annual or short-lived perennial plant, genus Nicotiana tabacum, which produces a spiral of largish 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 being the largest producer. Tobacco plants may be harvested whole, or individual leaves may be picked as they matu! re. The leaves are then air-, fire-, or flue-cured. by and by curing, the leaves must be held for a time in wet conditions before they can be further bringed. During this fermentation process the aroma develops and levels of... If you want to build a full essay, distinguish it on our website: OrderCustomPaper.com

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