What are Anxiety disorders? Anxiety disorders are the commonest psychiatric illnesses globally. There is no test for anxiety disorders like panic disorder, PTSD,OCD or social anxiety disorder and the diagnosis is based on a good history and examination. In this infographic, learn all about anxiety disorders - what they are, how they are diagnosed and how to treat them. But I want to know WHY we have them . . .
Also, for each ‘type’ of depression, differing ‘mixtures of causes’ have differential relevance. So, for psychotic or melancholic depression physical and biological factors are generally more relevant. By contrast, for non-melancholic depression, the role of personality (osteoporosis) and life-event stressors (accident) are generally far more relevant.