Causes and Effects of Nicotine AddictionNicotine is one of the most addictive substances. When a person smokes cigarettes or uses other tobacco products, nicotine reaches the brain within seconds and triggers a release of dopamine. Dopamine is a neurotransmitter that activates the brain's reward system and produces pleasurable feelings. Over time, the brain adjusts to the introduction of...
English
Arabic
Français
Español
Português
Deutsch
Türkçe
Italiano
Russian
Romaian