Abstract:
1. Introduction Everyone is unhappy from time to time, but some people suffer from a low mood that has a major impact on the person’s ability to carry out day to day activities. When this is persistent, lasting at least 2 weeks or longer, pervasive, and affecting the person most days and in most settings, then it is termed depressive disorder. Clearly lowered mood is on a continuum and the exact point at which unhappiness becomes depressive disorder is a matter of judgment....