Health problems. They’re different than when you were young and there’s more of them. Rheumatism. Arthritis. Diabetes. Heart disease. Cancer. Dementia and Alzheimer’s disease. The older you get, the greater your risk of having one of these. Feelings are often ignored because controlling physical pain is the patient’s main focus. Usually there’s more than just one health issue, so feelings associated with depression can be mistaken as symptoms of something else. Disease can mask depression.