Smoking tobacco has been something that people do for numerous reasons for centuries. It is the inhalation of smoke from the burning of tobacco. Originally at least that is what it was. The tobacco leaf was shredded and rolled up or stuffed in a pipe and lit. The fumes or smoke were then inhaled. Why was this started - who knows - maybe it was seen as a cure for some breathing complaint. However it started though, most people who smoke will want to quit smoking .... eventually.