is tobacco the most addictive substance Hardest Drugs to Quit and Why Nicotine is one of the
Nicotine is one of the most addictive substances available. According to The National Institute on Drug Abuse NIDA, it changes the brain's reward pathways, making the body depend on it to Most Addictive Substances Ranked Most tobacco products, including e cigarettes, contain nicotine, a chemical that can harm the heart, brain and whole body. As with other addictive products, using a nicotine product builds tolerance, leading to more What are the Most Addictive Substances? Carolina Center
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