Start with symptoms and daily function
Use conditions depression for the broader depression route, then review mental health conditions for condition-level navigation. Here, the decision focus is narrower: how depression-related symptoms may affect feelings, thinking, and everyday activities such as sleeping, eating, or working.
Depression is also called major depressive disorder or clinical depression. The supplied evidence distinguishes it by noting that it can cause severe symptoms. Those symptoms can affect feelings, thinking, and the handling of daily activities.
This route uses two organizing questions. First, what has changed in feelings or thinking? Second, what has changed in daily activities? Keeping those questions separate can produce a clearer account without assigning meaning that the evidence does not support.
Sleeping, eating, and working are the functional examples named in the evidence. They are examples rather than a complete checklist. The evidence does not identify required symptoms, duration, frequency, diagnostic thresholds, or a level of care. This page therefore supports description and route selection, not diagnosis.