Drugs and the Brain

Psychoactive drugs affect emotions, behavior, and consciousness by mimicking or disrupting brain chemicals called neurotransmitters. They are categorized into stimulants, depressants, and hallucinogens, each with distinct effects. Stimulants increase alertness but can lead to a crash. Depressants slow brain activity and can cause withdrawal symptoms. Hallucinogens alter perception and may trigger mental illness. Disrupting brain chemistry is dangerous and can cause irreversible damage.

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