Older adults often deny feeling sad while exhibiting other characteristics of depression. Elderly patients with depression who do not present with sadness often have unexplained somatic complaints and exhibit a sense of hopelessness. Anxiety and anhedonia (a general loss of ability to feel pleasure) are also encountered frequently. Other features that may indicate underlying depression include slowness of movement and lack of interest in personal care. A screening device, such as the Center for Epidemiologic Studies--Depression Scale, Revised (CES-D-R), may identify depression in suspicious cases. When this condition is identified, treatment should generally include the use of an antidepressant medication, usually a selective serotonin reuptake inhibitor.