Nicotine

Nicotine is a naturally occurring alkaloid found primarily in the nightshade family of plants, most notably tobacco. It acts as a stimulant in mammals and is commonly consumed through smoking, vaping, or smokeless tobacco products.

While primarily known for its addictive properties, nicotine is also being researched for potential cognitive-enhancing effects. It is used by individuals seeking a stimulant effect or as a component in nicotine replacement therapies aimed at helping people quit tobacco use.