<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 is the average heart rate during intense exercise? Context: The average heart rate during intense exercise ranges from 160-180 beats per minute. Answer: [/INST]The average heart rate during intense exercise is around 160-180 beats per minute.</s>