Anxiety and illness contribute to IBS

Recently released research performed at the University of Southampton, England, has shown a link between anxiety during illness and the onset of irritable bowel syndrome (IBS).

Researchers studied 620 people who had gastroenteritis, a gastrointestinal disorder caused by bacteria. The study participants were surveyed during their illness about their mood and work habits, their perception of their symptoms, stress levels, and anxiety. They were also surveyed 3 months and 6 months after their gastroenteritis had subsided.

Results showed that, 6 months after the end of the illness, 49 of those studied developed IBS. IBS is a chronic colon condition involving bloating, constipation, diarrhea, cramping and back pain, and approximately 20% of Americans suffer with this disorder.

The study found that depression had no effect on whether or not a participant developed IBS, but stress and anxiety were a factor. High levels of stress and anxiety during the gastrointestinal problems, negative perception of symptoms, and refusing to rest through the duration of the illness (often a behavior associated with anxiety) all seemed to increase the risk of developing IBS.

Doctors have wondered for years whether IBS is caused by biological or psychiatric issues. This study looked at both factors in tandem. Studies in the past have shown that gastrointestinal infections can trigger IBS, and separate studies have shown a possible link between anxiety and IBS. This study looks at those with gastroenteritis, their anxiety symptoms, and how both biological and psychiatric issues are factors in IBS.

Researchers at the Medical University of South Carolina previously found that anywhere between 50% and 90% of all those suffering with IBS also suffer from some form of psychiatric condition. The general consensus is that IBS is initially triggered by some form of biological factor leading to the weakening of the colon muscle, but that subsequent symptoms are worsened by the presence of stress or anxiety.

These findings have implications for future treatment of IBS. If anxiety is a factor in the development and severity of IBS, psychiatric and psychological interventions such as anti-anxiety medication and cognitive-behavioral therapy may be of use along with medical interventions.

© Copyright 2007 Insight Journal Online Magazine.

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University of Southampton, England
Insight Journal: Anxiety

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