cigarettes caffeine Myth: Nicotine is the same as caffeine. Nicotine and affect the brain differently. Nicotine attaches to certian receptors in the brain--> release of several brain chemicals including dopamine (involved in pleasure Impress your chemistry and independent film buff friends with a jumble of interlocking caffeine and nicotine molecules floating up high on the tie. Caffeine vs Nicotine: Key Differences
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