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'''Tobacco''' is a [[plant]] used for smoking and medicines. Its recreational qualities were discovered by [[Native American]]s and passed on to Europeans after the establishment of [[Jamestown]] in 1607.
'''Tobacco''' is a [[plant]] used for smoking. Its recreational qualities were discovered by [[Native American]]s and passed on to Europeans after the establishment of [[Jamestown]] in 1607.
== History ==
== History ==
Tobacco was exported by [[John Rolfe]], (husband of [[Pocahontas]]). It became known as a [[cash crop]]. The negative effects of tobacco such as [[lung cancer]], [[bronchitis]] and foul breath are widely accepted today. Tobacco companies have genetically modified tobacco plants and added toxic [[chemical]]s to their products to make them more addictive, thus making the modern cigarette much more toxic than the original cultivated plant.
Tobacco was exported by [[John Rolfe]], (husband of [[Pocahontas]]). It became known as a [[cash crop]]. The negative effects of tobacco such as [[lung cancer]], [[bronchitis]] and foul breath are widely accepted today. Tobacco companies have genetically modified tobacco plants and added toxic [[chemical]]s to their products to make them more addictive, thus making the modern cigarette much more toxic than the original cultivated plant.
== Nicotine ==
== Tobacco Products ==
== Tobacco Products ==
== Health Effects ==
== Health Effects ==
It has been estimated that cigarette smoking is responsible for 28% of all deaths in developed countries in the 35-69 age group, as well as 35% of all cancer deaths and 28% of all deaths due to vascular diseases<ref>Hecht, 2006.</ref>.
It has been estimated that cigarette smoking is responsible for 28% of all deaths in developed countries in the 35-69 age group, as well as 35% of all cancer deaths and 28% of all deaths due to vascular diseases<ref>Hecht, 2006.</ref>. Smoking increases the risk of oral, pharyngeal, esophageal, laryngeal, lung, uterine, cervical, urinary, and kidney cancers<ref>[http://www.cdc.gov/tobacco/health_effects/cancer.htm</ref>.
Coronary heart disease is one of the biggest causes of death in the United States, and is 2-4 more likely in smokers than nonsmokers. Smokers are also 10 times more likely to develop peripheral vascular disease, which is a narrowing of the arteries. Additionally, smokers are twice as vulnerable to a stroke compared with nonsmokers<ref>[http://www.cdc.gov/tobacco/health_effects/heart.htm]</ref>
== Secondhand Smoke ==
== Secondhand Smoke ==