We all share identical properties that mark us out as human beings. Even so, every person is unique: we are not clones. It's the same with depression – or perhaps more properly the depressions (plural) – because they manifest in so many different ways and under different circumstances yet in essence remain the same. This is a simple enough observation, yet there appears to be little understanding of the condition – or conditions – among the general public, who tend to lump together all...