Tobacco Use and Dependence

Tobacco use involves consuming products like cigarettes, cigars, or smokeless tobacco, which contain nicotine—an addictive substance. Dependence occurs when the brain relies on nicotine to feel alert or relaxed, leading to repeated use despite health risks such as lung disease and cancer. This addiction can make quitting difficult, as the brain adapts to the presence of nicotine. Understanding tobacco dependence highlights the importance of support and strategies to help individuals stop using tobacco and improve their long-term health.