Late-life depression is defined as an episode of depression occurring at age 65 or later. The risk of depression is lower in older adults than in younger, but when depression affects the elderly it can be more difficult to treat.
Late-life depression affects 2-5 % of older adults. Around 12-30 % of older adults experience some depressive symptoms.
For people who experience depression for the first time later in life, changes in the brain or other functions in the body may