Here is another of those one picture is worth a thousand words posts. (I may be stretching the idea of picture by calling an infographic one.)
I consider walking to be the Cinderella of the exercise world. Nobody appreciates how great it is. Every senior should do it. Here are some of my past walking posts: How to Burn More Calories Walking, Walking Reduces Heart Disease in People at Risk, Can Walking Cut Chocolate Cravings? How Healthy is Walking? Mall-Walking,Walking, Not Just Sudoku for Seniors.