Veteran actress, Tony winner and star of The Mary Tyler Moore Show Valerie Harper asks Dr. Oz to walk through some physical therapy exercises for those recovering from knee surgery.
Click here to watch Carol Burnett ask about exercises to help mental acuity.
Click here to watch Molly Ringwald ask about the benefits of the Mediterranean diet.
Click here to watch Michael Emerson ask about natural ways to heal bruises.
Click here to watch Deadliest Catch's Capt. Keith Colburn ask about stroke prevention.
Click here to watch Bill and Giuliana Rancic ask about cell phones and fertility.
Click here to watch Ace of Cakes' Duff Goldman ask about food allergies.