| − | '''Tobacco''' is a plant that contains the [[drug]] nicotine, and products produced from the leaves of that plant for consumption by smoking or chewing. Its recreational qualities were discovered by [[native American]]s and passed on to Europeans after the establishment of [[Jamestown, Virginia|the first permanent English settlement]] in 1607. Tobacco is smoked for a euphoric high that relaxes the individual and provides a calming, social atmosphere. However, studies have shown that tobacco causes many types of respiratory diseases such as [[lung cancer]] and [[emphysema]]. Nicotine is also an addictive substance that is the subject of controversy. | + | '''Tobacco''' is a plant that contains the [[drug]] nicotine, and products produced from the leaves of that plant for consumption by smoking or chewing. Its recreational qualities were discovered by [[native American]]s and passed on to Europeans after the establishment of [[Jamestown, Virginia|the first permanent English settlement]] in 1607. Tobacco is smoked for a euphoric high that relaxes the individual and provides a calming, social atmosphere. However, studies in the mid to late 20th century showed that tobacco causes [[lung cancer]] and many other types of respiratory diseases such as [[emphysema]]. Nicotine is also an addictive substance that is the subject of controversy. |