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Shock Therapy’s Effect on Depression Discovered, Researchers Say

After using electroconvulsive therapy for more than 70 years to treat severe depression, doctors say they now have discovered how it works.

Shock therapy, in use since 1937, appears to tamp down an overactive connection between two parts of the brain involved in emotional processing, thinking and concentration, according to a study released today by the Proceedings of the National Academy of Sciences.