PHYSICS 102 Lecture Notes - Lecture 17: Paint Thinner, Hash Oil, Nabiximols

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A drug is a medicine or other substance which has a physiological effect when ingested or otherwise introduced into the body. A drug of abuse is a drug taken for non-medicinal reasons (usually for mind-altering effects). Drugs of abuse can lead to physical and mental damage, dependence and addition. There are seven different drug types, and each has its own set of effects and risks: stimulants. Drug or chemical that arouses and stimulates the brain and central nervous system. It produces a sense of euphoria and a feeling of being more awake. (increase heart rate, breathing etc), e. g. amphetamines, cocaine: depressants. Drug or chemical that diminishes and inhibits the activity of the brain and central nervous system. It causes calmness, relaxation, and sedation. (decrease heart rate, breathing etc), e. g. heroin/opiates, alcohol, barbiturates, benzodiazepines: hallucinogens. Drug or chemical that works by disrupting communication within the brain. Users report intense, rapidly shifting emotions and perceptions of things that aren"t really there.

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