Once we retire our lives drastically change. After working for many years it is important to keep active to prevent depression. Continue working on your hobbies, start a new hobby that is interesting and challenging, join a group of like minded people or join a local senior community group. Some activities may be quite basic such as going for a walk, reading books, knitting, completing puzzles, drawing, painting, listening to music, reading magazines and many more fun, interactive and challenging activities. By keeping engaged you keep active both mentally and physically. If you have limited mobility seek out a physiotherapist to get ideas how to get active and involved.