Does Stress Cause Bells Palsy?

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Article updated and reviewed by Peter B. Kang, MD, Assistant in Neurology, Children's Hospital Boston, and Instructor in Neurology, Harvard Medical School, Boston, MA on April 18, 2005.

Bell's palsy is a facial paralysis caused by an irritation of cranial nerve VII (seven) with no apparent cause. This excludes facial paralysis associated with known causes such as infection or stroke. Cranial nerve VII controls most facial muscles, including those needed to smile, blink, and wrinkle the forehead....

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