What is the Meaning & Definition of tobacco

Tobacco is a plant product that is obtained from the plant known as Nicotiana (with many different species) is also the main and central element of tobacco cigarettes, the most popular and consumed. Tobacco is native to America, having been used by the Americans for a long time before the Europeans discovered in the 15th century and take him back to their lands. Tobacco is today one of the main products that are consumed in the world since it has important addictive properties that make consumer generated an important dependence on it. Tobacco is considered one of the most addictive and harmful substances human consumed freely today (unlike others that are considered illegal). Tobacco is consumed mainly through inhalation of the smoke generated by combustion, it is not normal to consume as food tobacco. Today, tobacco cigarettes have many other also addictive and harmful elements that make it almost impossible to leave the consumption and that tobacco companies, those that are engaged in the manufacture of these products, are extremely powerful and rich.
In addition to generating great addiction, tobacco generates other major problems that increase to no power the person stop consuming it. Among these damages can point mainly diseases to the respiratory system (especially in the lungs), to the organs of the mouth, the cardiovascular system (to encourage the accumulation of cholesterol) and other problems. Currently, there are numerous programs and centers seeking to facilitate people abandonment of tobacco because of the harm that it means health and how difficult that becomes to discontinue their use.