It’s the most common gastrointestinal disorder in the world. Between 25 million and 45 million people in the United States are living with it. It can lead to a poor quality of life, depression and anxiety. And its direct and indirect costs to society exceed $21 billion annually. And yet, irritable bowel syndrome (IBS) is rarely part of the overall healthcare conversation. That makes June, as Irritable Bowel Syndrome Awareness Month, the right time to learn about this widespread and often life-changing issue.