Using medications or surgeries to treat psychological disorders, based on the assumption that psychological disorders are symptoms of underlying physical problems, is the focus of

psychiatry, medical or biological therapy (psychology)

Explanation:

According to different treatments, the biological basis for psychological disorders assumes that inner imbalances in the neuro transmitters will cause behavioural disorders or psychological sickness. Mental health specialists will account as well for genetic factors that are present in the subject that suffers.Therefore conventionally they will prescribe a series of drugs that will help to correct or restore the well being of the person.

Sometimes  just in extreme cases a surgery will take place, since it will always have a high risk. In the past it was more widespread the surgeries that removed parts of the brain that caused huge pain, for example to people with cancer. Lobotomies are also debatable, still, they were used for treating severe cases.

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