Nicotine Addiction
Nicotine Addiction Nicotine has over 4,000 chemicals found in a single cigarette and other tobacco products. ... Nicotine is the primary component in tobacco that acts on the brain. Nicotine is also found in snuff that is chewed. Nicotine is a colorless liquid that turns brown when burned. Nicotine smells like tobacco when opened to the air. ... Nicotine was first identified in the early 1800s. Nicotine has been studied over the years and the research has shown that nicotine to have number of complex effects on the brain and body.