Influenza is straightforward: one day you do not have the responsible virus in your system, and another day you do. HIV passes from one person to another in a definable isolated split second. Depression? It’s like trying to come up with clinical parameters for hunger, which affects us all several times a day, but which in its extreme version is a tragedy that kills its victims. Some people need more food than others; some can function under circumstances of dire malnutrition; some grow weak rapidly and collapse in the streets. Similarly, depression hits different people in different ways: some
...more
