Stress causes negative emotions like anger, anxiety, and depression. When the mind is not stable, people indulge in emotional eating and suffer from sleep disorders. All of this takes a toll on the system, leading to IBS and other chronic problems. When stressful, one tends to eat junk and consume caffeine and alcohol. These foods aggravate bowel imbalance, worsening the condition. Thus, stress is closely associated and is often the root cause of IBS. Research proves that 40% of people suffering from IBS have shown symptoms of psychological illness. The treatment to control IBS also suggests psychological intervention for better results.