Stop Drugs.org - Tobacco CA Department of Justice Tobacco Tobacco is used in many forms, including cigarettes, cigars, pipe tobacco, chewing tobacco, and snuff.
Cigarettes are the most common type of tobacco used by teens, followed by chewing tobacco and snuff.
Many harmful ingredients in tobacco, such as nicotine, carbon monoxide, and hydrogen cyanide are absorbed into the body through the lungs. Nicotine, the addictive substance in tobacco, is so toxic that it has been used as an insecticide. Tobacco acts both as a stimulant and a depressant. A beginning smoker will experience euphoria, lightheadedness, giddyness, dizziness, elevated heartbeat and respiration rates, and a tingling sensation in the hands and feet. A chronic smoker will suffer from a diminished sense of smell and taste.