Nicotine

Nicotine is a chemical compound found naturally in tobacco plants. It acts as a stimulant on the nervous system, producing effects such as increased alertness and temporary mood elevation. When inhaled through smoking or vaping, nicotine quickly reaches the brain, where it stimulates the release of chemicals like dopamine, reinforcing feelings of pleasure and addiction. While it can enhance focus temporarily, nicotine carries health risks, including dependence and increased cardiovascular strain. It is the primary addictive substance in tobacco products, making cessation challenging for many users.