Overview Nicotine is a naturally occurring alkaloid found primarily in the tobacco plant, Nicotiana tabacum. It is the main addictive substance in tobacco products, including cigarettes, cigars, and smokeless tobacco. Beyond its recreational use, nicotine is also utilized in medical treatments to help individuals quit smoking, though it is notorious for its addictive properties. As a stimulant, nicotine acts on the nervous system and has both therapeutic and detrimental effects on health. This article provides a detailed examination of nicotine, its uses, benefits, side effects, and guidelines for its use. What is Nicotine? Nicotine is a colorless, odorless alkaloid that…