Hand dryers have been accused of leaving your hands dirtier than before washing them and spreading harmful bacteria. But is the concern overblown? We investigate. Plus, Meredith Vieira is here with cutting-edge medicine, bringing hope to those with cancer, autoimmune diseases, and neurological disorders.

Whether it's falling or flying, Dr. Oz has the answers to why you have the dreams that you do and what they might mean.

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