I have a co-worker that had one at 40. You need to know your risk factors. Blood pressure is the big one. It is the silent killer. You can have very high BP with no symptoms. Get up off the couch and walk once you are able. It doesn't matter how far you can walk at the beginning. Start with a short walk, then every week make it a little longer. Do it every day. My BP is way down now that I have been walking regularly. Good luck!