How do drugs affect the nervous system?
Then, how do drugs affect the brain and nervous system?
Drug action Like neurotransmitters, drugs can speed up (CNS stimulants) or slow down (CNS depressants) the transfer of electro-chemical messages between neurons in the brain. Messages between neurons can also be distorted when hallucinogenic drugs are taken.
Regarding this, how do drugs affect the body?
You probably know that drugs affect feelings and moods, judgment, decision making, learning, and memory. But they can also cause or worsen other health problems—cancer; heart disease; lung disease; liver function; mental disorders; and infectious diseases such as HIV/AIDS, hepatitis, and tuberculosis.
Various substances that you might take into your body -- intentionally or unintentionally -- can cause nerve pain and nerve damage. These include medications, such as some chemotherapy treatments for cancer, and certain drugs used to treat HIV.