DEAR DOCTOR K: I'm in my 80s. I recently stopped driving, and now I can get around independently only by walking. Can you tell me how to improve, or at least maintain, my mobility?
DEAR READER: Mobility is one of those things most of us take for granted until we begin to lose it. That's when we realize that even a simple, relatively uneventful day requires a great deal of physical stamina, strength, balance, coordination and range of motion. The single most important thing you can do to remain mobile and independent is to engage in regular physical activity. I can't emphasize this enough: You need to be active to stay active.