Antidepressants can have side effects, especially in older persons who metabolize drugs more slowly. For example, certain tricyclic antidepressants, such as Elavil, can produce cardiovascular side effects and should probably be avoided if you have heart disease. Your doctor will probably try to minimize side effects by starting you on low doses and building up. If you still experience significant side effects, you should probably try another medication. Spend time with others who make you laugh.
Exercise can actually increase positive feelings.
Care for a pet. Pets provide companionship and help fulfill the desire to feel needed that is so important in the senior years. Medical literature supports the role of animal companions in maintaining health, and pet therapy is now a part of many hospital and nursing home routines. Express your feelings. Give yourself a break.