Captain Keith Colburn of the Deadliest Catch asks Dr. Oz about preventing and detecting stroke. Reducing stress, quitting smoking and cutting down on alcohol consumption are important prevention factors - and so is maintaining a healthy diet high in Omega-3s. Dr. Oz suggests a recipe; click here to learn how to make the Healthiest Catch salmon sandwich.

Click here to watch Carol Burnett ask about maintaining mental acuity.

Click here to watch Molly Ringwald ask about the benefits of the Mediterranean diet.

Click here to watch Valerie Harper ask about knee-strengthening exercises.

Click here to watch Michael Emerson ask about natural ways to heal bruises.

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.

Want to know how to look marvelous without splurging so much? Dr. Oz invites three beauty experts to share the smartest ways to save money while looking fabulous starting from your hair and makeup tools to the beauty products you use.