A nurse is teaching a client who has migraine headaches how to use biofeedback to reduce the need for pharmacological interventions. Which of the following information should the nurse include in the teaching?

Rationale: A. This statement describes acupressure or acupuncture principles, not biofeedback. Biofeedback does not involve physical stimulation of pressure points. Instead, it uses monitoring devices to provide real-time information about physiological functions so the client can learn to consciously control them. B. This describes herbal or alternative pharmacologic therapy, not biofeedback. Biofeedback does not involve the use of herbs or any substances. It is a behavioral and mind-body technique that focuses on self-regulation of physiological processes. C. This reflects concepts associated with massage therapy or practices like Reiki, which focus on manipulating soft tissue or energy flow. Biofeedback does not involve physical manipulation of tissues or energy flow theories. D. Biofeedback works by using electronic monitoring devices to give the client feedback on physiological functions such as heart rate, muscle tension, or skin temperature. The client then uses relaxation techniques, breathing control, and focused concentration to consciously modify these responses. Over time, this helps reduce migraine frequency and severity by improving self-regulation of stress-related physiological triggers.