Introduction

Impressive arguments have been developed stating that stress research has been led astray by its emphasis on particular social stresses leading to specific diseases, rather than seeing stressors raising susceptibility to disease in general [1]. Although we do not wish to deny the cogency of the argument, the fact is that our own experience within psychiatry points to the value of studying particular conditions and their link with particular kinds of stress. There is now clear evidence that the stressors for depression [2-4], differ in important ways from those for anxiety [3], and for schizophrenia [2, 5], and see no reason why a similar approach should not pay off in the area of physical disease.

In the case of gastrointestinal disorder, speculation about the role of life stress can be traced to virtually the first clinical descriptions [6-8]. But until recently work has been based on a small number of patients and although these early studies provided important insights they were unable to demonstrate convincing causal links even when supported by direct observation of the physiologic reactions of the gut to a variety of noxious stimuli [9-11].