What are biofeedback machines?

Electronic devices. That measure biological reactions and feed the information back to you with simple signals. They help you learn to regulate your body's response to stress or to correct a dysfunctional body response. The most common instruments measure muscle activity, heart rate, breathing, skin temperature, sweating, or brain activity. Check with www.Bcia.Org and www.Aapb.Org for info & certified therapists.