Final answer:
Psychoactive drugs alter consciousness by influencing neurotransmitters, with potential negative effects like tolerance and addiction.
Explanation:
Psychoactive drugs are chemicals that change our states of consciousness, altering perceptions, moods, and cognitive processes by influencing neurotransmitters in the CNS. They include stimulants, depressants, opioids, and hallucinogens, and can lead to negative effects like tolerance, dependence, withdrawal, and addiction.
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https://brainly.com/question/42531136
