DEAR DOCTOR K: I know I should exercise regularly, but I just can't get motivated. Do you have any suggestions?
DEAR READER: Practically everyone has heard that exercise is good for you. But not many people know just how good it is for you. For example, did you know that walking briskly for 30 minutes, at least five times a week, can do more to reduce your risk of getting diabetes than any medicine yet invented? It cuts your risk of diabetes in half.