Greg has been deeply unhappy for the past three months. He has lost weight because he has no appetite and is on the verge of losing his job because he cannot concentrate. He is considering suicide. The most appropriate treatment for Greg would be

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Greg is displaying symptoms of depression, including loss of appetite and concentration, and suicidal thoughts. Exercise has been shown to be an effective treatment for depression. Cognitive behavior therapy can help him address negative thought patterns and behavioral changes. Selective serotonin reuptake inhibitors (SSRIs) are commonly used to treat depression and can help stabilize Greg's mood. Electroconvulsive therapy and MAO inhibitors are not typically first-line treatments for depression and may not be appropriate in this case. Systematic desensitization is a treatment for anxiety disorders and not effective for treating depression. Tricyclic medications also have potential side effects and risks that make them less desirable than SSRIs.

Greg Has Been Deeply Unhappy for the Past Three Months