In terms of productivity and functioning on social, economic and personal scales, depression is the most common and costly health problem in North America (Beutler et. all, 212). No one escapes the ups and downs of life. People suffer disappointments, inconveniences and losses that may upset them all the time. Some get depressed and some don’t. In the case of a grievous loss it is natural to be depressed, but this fades with time and …showed first 75 words of 2738 total…

…showed last 75 words of 2738 total…own right” (Beutler, Clarkin, 255). Depression has been found to be more clearly defined by the lack of positive affectivity, a positive sense of control and expectations Although it has negative thought processes in common with many other disorders it is this lack of the positive aspects as opposed to exaggerated negative aspects that truly sets depression apart. Depression is “more a function of the absence of positive feelings than the presence of negative ones” (Beutler, 239).