Please choose the correct ending to complete the given sentence: Health: [header] How to alleviate back pain naturally [title] Visit a chiropractor. [step] A chiropractor is a specialist who treats neuromusculoskeletal conditions, primarily those that impact the back, neck and joints. A chiropractor will assess your condition and then will help align your spine naturally through a series of adjustments.

Ending1: This is usually painless and needs little or no medication. You may need to visit a chiropractor's office once or twice a week for 2-4 weeks. Ending2: [substeps] Ask your doctor about undergoing a chiropractor's visit. The visit will help your doctor rule out any problems and ease your stress. Ending3: Chiropractors also reduce pain-related stress by giving you exercises to do and trimming your muscle fibers to maintain your posture. [substeps] Reputable chiropractors can do these exercises with you on a regular basis, but don't rely on them every day. Ending4: The chiropractor will also examine your muscles so they can evaluate you properly at their convenience. [substeps] Chiropractors also are trained to help relieve back pain by manipulating and flexing different muscle groups in response to stress, tightness and burning.

Answer format: ending1/ending2/ending3/ending4