However depression in the aged patient may be atypical in nature and more difficult to diagnose from that in the general population. Therefore it is often under-diagnosed and under-treated (Jacob & Palmer, 1998). In contrast to younger depressed patients, elderly patients often avoid reporting or showing that their mood level and tend to hide their state of disease or, worse, they lack the consciousness of the disease and think that enjoying life less than before is an inevitable consequence of aging. Moreover, elderly sometimes attribute their depressive symptoms to general medical conditions. Other factors that may hinder distinguishing depression from other conditions are also concomitant diseases, especially dementia, polypharmacy and drug reactions (Glass, 2003). Furthermore Hybels et al. (2001) compared in their study the demographic and risk factor profiles of elderly individuals with less and more severe depression. The obtained results indicated the need to recognize that elderly adults who do not meet the Diagnostic and Statistical Manual of Mental Disorders (DSM) criteria for depression, and those who fall below the threshold on instruments such as the Center for Epidemiologic Studies-Depression scale (CES-D), may still experience depressive symptomatology that warrant attention.