Popular Health Myths Debunked

TV doctor reveals popular health misconceptions from his book, "Tell Me the Truth, Doctor."
4:03 | 04/22/13

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Transcript for Popular Health Myths Debunked
He is abc's chief health and medical editor. He's written a new book, "tell me the truth, doctor. Easy to understand answers to your most confusing and critical health questions." Dr. B. You have helded me so much through my health issues. Full disclosure. And with everybody here at "gma." The book is beautiful because it's you. You're talking to people. Why are we so afraid to ask our doctors questions? It's hard to get in the room with you doctor. There's a power relationship. You're usually wearing a paper gown. Think about asking the questions then, it's next to impossible. I wanted to put in the book, swers to questions that people have. There's so much confusing information out there. You arm us with the information to start asking the questions. Once you know the answers, it can empower you to take control of your own health. We're going to have a bitf a quiz here. There are a lot of misconceptions out there. We're going to ask the audience some questions. See if you know the correct answer. I don't have the skinny mike, josh. I'll try. Oh, so the first question is, should I wash prewashed lettuce? Should you wash prewashed lettuce? A lot of yeses. What is the answer? The answer is no. Here's the reason why. This is washed by the company several times before it gets to your house. If your kitchen, there's all kinds of bacteria. Buy the freshest you can, reach if the back of the cupboard. Can magnetic jewelry -- people swear by this -- my performance in sports. It's 50-50. A lot of nos. The answer is no. this is total hype. Hi son, little league team, they gaef these with the uniforms. The kids spend money on this. There is no science that ion bracelor magnets help anythi performance. This is a big one. Tap batter ver water versus bottled. A difference? A lot of yeses. The answer is, tap water is just as good or better than bottled. If you look at the top two bottled waters, they're taking tap water and fimterring it. If you don't like the flavor of your tap water, you can use a filter. There is more regulation of tap water than bottled water. A lot of people want to know, does eating eggs give me high cholesterol? Yes, yes? Um -- a lot of yeses here. The answer on that is no. Oh. Eggs are very good food source. One egg a day is great. Your total diet matters. This is a good one. I'm lathered in this soap. Anti-bacterial. Is it better? Ls you have an immune -- oh, I gave the answer. The answer is, regular soap is just as good. You don't need the chemicals on your body. We had fun with this. You can get really great answers to more of your health questions. Tell me the truth, doctor, is in book stores right now. Let me tell you. I know this firsthand. It's like having a conversation with this man right here. He's going to help you.

This transcript has been automatically generated and may not be 100% accurate.

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