Well getting rid of the stress
in your life is the obvious answer, but how many of us can do that? Easy to say, not so easy to do. Exercise is one of the best. You don't need any fancy equipment or a gym membership. Just put on your sneakers and go for a walk. Also, get yourself a little fish tank. Sounds crazy I know, but watching fish is relaxing and has been proven to lower blood pressure. Also sounds crazy again, but get yourself a simple craft, like a paint by number (If your not artistic), or a model car or something. Art therapy is very relaxing. Good luck.