Biofeedback is a technique in which a machine detects an internal body function like your heart rate or your body temperature that's supposed to be involuntary. When you're aware of the function, you can attempt to alter it. Experiments with biofeedback techniques show that people have more control over so-called involuntary bodily functions than they realize.
Biofeedback has been shown to relieve stress in patients with type 1 and type 2 diabetes with a significant fall in hemoglobin A1c, muscle tension, and average blood glucose. A study in Diabetes Care in May 1991 found that type 1 patients who did biofeedback had significantly more normal blood glucose levels than a comparable group that didn't undergo biofeedback.
You can find a practitioner at the Web site of the Association of Applied Psychophysiology and Biofeedback, www.aapb.org.
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