Think sugar makes your kids go crazy? Nope, says Dr. Nancy Snyderman, author of the new book Medical Myths That Can Kill You: And the 101 Truths That Will Save, Extend, and Improve Your Life. If anything, there may be an associative link, which means sugar is often combined with social events -- like birthday parties and cupcakes -- and so it's the activity, not the sugar, at work. Really, study after study has revealed no link between sugar and hyperactivity, according to Snyderman, who takes on all sorts of myths and truths in her book, like these:

• Is ear wax linked to breast cancer? Yes, actually, it is. If your wax is moist and gooey, it can predict your risk for the disease, says Snyderman. Why the connection? Because the breast and the ear canals are both modified sweat glands. There's a connection, you see. Snyderman also says we should not be cleaning our ears every day. Wax is like lubrication and we need it.
  
  

• Medications should not be kept in bathroom medicine closets because bathroom heat and humidity can ruin them. Keep them in a hallway closet instead.
  

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