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Negative effects of weed

June 17, 2026

Last updated: June 25, 2026


What it does:

☒ Decreases key neurotransmitters (dopamine, acetylcholine, GABA, glutamate)

☒ Reduces brain volume

☒ Alters brain structures (amygdala, nucleus accumbens)

☒ Reduces reward perception

☒ Reduces separation of logic & emotion

☒ Impairs memory

☒ Impairs mitochondrial function

☒ Lowers IQ

☒ Increases depression risk

☒ Increases anxiety risk

☒ Increases risk of suicidal ideation

☒ Drastically increases risk of schizophrenia

☒ Massively increases risk of psychosis

☒ Increases risk of several cancers (all head + neck, laryngeal, nasopharyngeal, oral, oropharyngeal, salivary gland, testicular)

Source: https://x.com/Outdoctrination/status/1903043866640437563