Tobacco is s stimulant drug. Stimulant drugs increase brain activity and intensify the messages between the brain and the body.
Products such as cigarettes, cigars, pipe tobacco, and chewing tobacco contain dried leaves from the tobacco plant. The main chemical in tobacco is nicotine.
Tar and carbon monoxide (a toxic gas) are also released when tobacco is burned (eg when it’s smoked).
Tobacco smoking is the major cause of preventable morbidity and mortality in Australia.