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Nicotine(HARMFUL)

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substance Score Unrated 0 ratings— needs ≥ 3 ratings C10H14N2 Also on Neurotransmission ↗
⤢ 3D

Nicotine is a stimulant that activates nicotinic acetylcholine receptors, modestly sharpening attention and mood while being strongly addictive. Its acute cognitive effects are real but small and short-lived, and any research interest (e.g., epidemiological inverse associations with Parkinson’s) has not translated into therapeutic use. Most real-world harm comes from tobacco combustion, but nicotine itself drives dependence and has cardiovascular effects.

Too little may be associated with

No requirement; withdrawal in dependent users.

Too much may be associated with

Addiction, cardiovascular harm, tobacco-related disease.

Informational only — not medical advice.

Benefits

A stimulant that transiently sharpens attention and, in patch/gum form, is an evidence-based smoking-cessation aid.

Risks

Highly addictive; raises heart rate and blood pressure, harms adolescent brain development, and is dangerous in pregnancy. Delivery via smoking and vaping adds major toxic and carcinogenic harm.

Informational only — not medical advice.

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Neurotransmitters

Books (9)

Research (21)

Links

Recovery resources

Help for nicotine use and recovery. Not an endorsement or medical advice — see all recovery resources.

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