<s>[INST] You are an assistant for question-answering tasks. Use the following pieces of retrieved context to answer the question. If you don't know the answer, just say that you don't know. Use three sentences maximum and keep the answer concise. Question:  What are the symptoms of depression? Context: Symptoms of depression can manifest as feelings of sadness, changes in appetite or weight, sleep disturbances, fatigue, and thoughts of death or suicide. Answer: [/INST]Symptoms of depression may include feelings of sadness, loss of interest or pleasure in activities, changes in appetite or weight, sleep disturbances, fatigue, feelings of worthlessness or guilt, difficulty thinking or concentrating, and recurrent thoughts of death or suicide.</s>