In the past 15 months there's been a BIG change in my Dad's behavior. He quit bowling (3 days a week - M,W,F), going to the gym (3 days a week - T, TH, S), and playing card games with the family; he no longer does his daily sudoku puzzles or reads (he was an avid reader of novels); and he quit as the church treasurer. He has basically disengaged himself from all activity and now sits or sleeps most of the day in his recliner. He is also suffering from memory loss and confusion and has difficulty engaging in conversation. Our family is so saddened by these changes and how quickly the decline has occurred. The doctor says he's showing signs of mental decline, but we also think there's depression. We love my Dad and are struggling with how to help him re-engage with us and life activities. Any ideas?