> Nicotine itself is addictive mostly because it has such a long half life, it stays in the body for multiple weeks. It has a half-life of 2 hours [0]. If it l

> Nicotine itself is addictive mostly because it has such a long half life, it stays in the body for multiple weeks. It has a half-life of 2 hours [0]. If it lasted longer I think its withdrawal effect would be less steep and more gradual. [0] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7794006/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7794006/