My Dad has dementia, depression, continuing weight loss, and macular degeneration. Although living in an assisted living wing of wonderful retirement community he shows NO interest in participating in activities, improving himself through physical therapy, or even going to mealsunless strongly encouraged. He stays often in bed until noon. Antidepressant had adverse side-effect. Lived large in younger years building and flying airplanes, traveling, etc. Now is not driving, or expressing interest in anything. Help! I'm sad, depressed, and feeling helpless about helping him feel better about life.