Favorite exercise?

Walking is the best for me since I hurt my back. With walking it can be as fast or slow as you like. You can start slow and stay slow like a casual walk. You can start slow and pick up the pace and slow it back down to finish it off. You can walk on a nice nature trail but also remember to be safe and make sure that you are in a well walked area and pay attention to your surroundings. Walking with a friend is always safer.