Depression affects people of all ages. Many people assume that depressive symptoms are a part of the normal aging process. As a result, these symptoms are often overlooked in older adults. In fact, research has shown that 80% or more of long-term care residents who have depression are not properly diagnosed and fail to receive the proper treatment for this illness. (Mood Disorders Society of Canada, 2010). As a caregiver, you need to understand what depression is and what causes it. You should know how to recognize the symptoms and signs that signify depression, be familiar with the types of treatments available, and understand how to initiate the appropriate nursing care for depressed residents.