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Biofeedback-assisted relaxation has benefits for patients with type 2 diabetes. Because mood appears to have a moderating effect on blood sugar levels, researchers randomly assigned 39 patients to either a biofeedback group or an education group.
In the biofeedback group, patients had 10 weekly individual sessions with relaxation and training in biofeedback, problem solving, and stress management. Participants in the education group had 3 individual educational sessions, held 4 to 5 weeks apart, on facets of diabetes. Reporting in Diabetes Care (September 2005), the researchers noted that biofeedback and relaxation were linked with considerable decreases in average blood sugar levels and muscle tension, compared with the education-only group. After 3 months, the positive effect in the treatment group continued.