Please choose the correct ending to complete the given sentence: Health: [header] How to manage stress with ulcerative colitis [title] Try biofeedback. [step] Biofeedback is a technique where you work to control your body's automatic response to something like stress. During biofeedback, you need to be hooked up to sensors that monitor your body's functions, like heart rate and breathing.

Ending1: You'll work on eliminating unnecessary hormones and keeping yourself calm and well-functioning. [substeps] You will probably need to practice biofeedback for at least 60 minutes five times a week, although it could be a month or longer. Ending2: During biofeedback, you work towards relaxing your muscles and controlling your breathing, which can help reduce stress by lessening your body's stress response. Talk to your doctor or therapist to get started with biofeedback. Ending3: During biofeedback, a monitor detects changes in signals you feel. This is then followed by your immune system's response. Ending4: The device then listens to your heart beat, and generates a response. [substeps] Biofeedback tools let you monitor your heart rate and blood pressure using a camera or monitor.

Answer format: ending1/ending2/ending3/ending4