Somatic symptom disorder was added to the American Psychiatric Association's Diagnostic and Statistical Manual of Mental Disorders, in its 2013 fifth edition. Critics of somatic symptom disorder note that with this addition, any physical symptom may be erroneously deemed a mental illness; people who actually have cancer might well be diagnosed with somatic symptom disorder. Other experts contend that this disorder links the mind and the body more firmly, which will help people who experience poorly understood physical conditions.