Question

How the nervous system is affected by drugs?

Answer 1

Mind-altering drugs may slow down or speed up the central nervous system and autonomic functions necessary for living, such as blood pressure, respiration, heart rate, and body temperature. Levels of some of the brain’s chemical messengers, or neurotransmitters


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Answer 2

The more often drugs are used, the more they will impact brain chemicals and circuitry, which can lead to drug dependence and withdrawal symptoms when the drugs process out of the body. Drug cravings, dependence, and withdrawal symptoms, coupled with a loss of control over use, are signs of addiction.