
For each symptom, we vary in terms of how often we experience it, how severe it is, how easily we can control it, and how much distress it causes. In the terrain of mental health, there is no objective border to cross that delineates the territory of disorder. On top of this, the thoughts, feelings and behaviours that appear temporarily as a natural response to hardship and stress – like when we’re heartbroken – exactly mimic those that, should they persist, are defining features of mental disorders. So blurry are these boundaries that some psychologists argue we shouldn’t use the terms “illness” or “disorder” at all, and should only view all of this as matters of degree.