Do you have a senior in your life who might be depressed? This site has terrific information regarding signs and symptoms of depression in older adults. According to this site, most people assume depression means feeling sad, but that isn’t always the case. Seniors may complain instead, of low motivation, a lack of energy, or physical problems. In fact, physical complaints, such as arthritis pain or worsening headaches are often the predominant symptom of depression in the elderly.