What is biofeedback and how does it work?

What are stress interventions? Can they be helpful?
An intervention is something that “comes between,” in this case, something from outside yourself that comes between you and your stress. Biofeedback is both a diagnostic and therapeutic tool that can be used to evaluate some of your physiological stress responses, and it can also help you to change them. A technician hooks you up to a biofeedback machine, which uses sensors to monitor your body temperature, muscle tension, brain wave patterns, blood pressure, or heart rate. By learning to recognize which sensations are correlated with body temperature, for example, you can learn to raise and lower the temperature in your extremities by dilating and constricting your blood vessels. You can also learn to tense and relax muscles voluntarily, and to enter different brain wave states at will. Some people learn to control their blood pressure and heart rate to some extent. These skills can be very valuable in inducing relaxation.

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