Bell's palsy is a sudden facial paralysis that usually strikes all or part of one side of the face. Men or women of any age can suffer Bell's palsy, but statistics suggest that people aged 20 to 40 are at higher-than-average risk. Your risk of experiencing Bell's palsy in our lifetime is about 1 in 60. Few people are struck by Bell's palsy more than once in their lives.
Bell's palsy can be a frightening experience, appearing suddenly with symptoms that cause many people to think they're having a stroke. In reality, stroke symptoms are quite different, and Bell's palsy is a comparatively harmless condition that usually clears up without treatment.