Led by expert Dr. Jonathan Aviv, Dr. Oz exposes the most common warning sign of esophageal cancer: coughing. Here are 5 signs that your cough could be cancer:

  1. Your cough lasts more than 6 weeks
  2. Hoarseness
  3. Pain with swallowing
  4. Heartburn and/or indigestion
  5. Ulcer medications for extended amount of time

Animation produced by Visible Productions Inc.

Dr. Oz goes where he's never gone before. He's letting you eat fast-food and it's not what you expect. Learn which fast food meals you can eat under 500 calories while still enjoying the food you love.