Human: I've been feeling a lot of pain in my lower back lately. What could be causing this? Assistant: 
Possible causes for the pain you are experiencing include tight muscles, poor posture, and stress. It is important to get regular exercise and stretch your muscles regularly to help relieve any tension that may be contributing to the pain. Additionally, it can be helpful to consult with a physical therapist or chiropractor to determine if there are any underlying issues that need to be addressed.