Methodological problems with this literature start with sampling problems, such as sampling bias, lack of confirmation of the diagnosis, and nonseparation of diseases (especiallyCrohn's diseaseandulcerative colitis, which are actually quite different in their associations with psychopathology). Other seriou...
Psychophysiological disorders are defined as a group of disorders "characterized by physical symptoms that are caused by emotional factors and involve a single organ system, usually under autonomic nervous system innervaton. The physiological changes involved are those that normally accompany certain ...
Many psychosomatic problems are the result ofa. prolonged stress. While nutritional deficiencies, sleep deprivation, and imagination can arise from...