Why Multiple Diagnoses Are Common for Mental Illness

Source: Science Daily - Top HealthAn analysis of 11 major psychiatric disorders offers new insight into why comorbidities are the norm when it comes to mental illness. The study suggests that while there is no single gene or set of genes underlying risk for all of them, subsets of disorders—including bipolar disorder and schizophrenia, anorexia nervosa and obsessive-compulsive disorder, and major depression and anxiety—share a common genetic architecture.