Every week, Dr. Roizen discusses the latest health headlines YOU need to know.In this episode, Dr. Roizen talks about the latest health headlines that YOU need to know, including the following topics: Walnut consumption alters your gut bacteria, leading to weight loss. More cancer patients are surviving.  A healthy diet reduces hearing loss by 30 percent. A healthy diet also increases the size of the memory area of your brain key for cognitive function. More parents are smoking pots around kids--leading to more secondhand smoke from weed than traditional cigarettes. A cure for the common cold--could it be just around the corner? Hair straightening products contain a potentially toxic mix of chemicals. Kids' suicide-related hospital visits double in the last five years. PLUS so much more... Bonus! Feel Like Your Allergies Are Worse This Season?