You really can outrun diabetes. Aerobic activity lowers insulin resistance and helps with weight loss and maintenance. The standard dose is 30 minutes of moderate activity most days of the week. But it doesn’t have to be all at once or at the gym. Sprinkle it over the course of the day in 10-minute bursts of exertion, suggests Nora Saul, nutrition manager at the Joslin Diabetes Center, affiliated with Harvard Medical School. Organize your day so you can do as many errands by walking at a brisk pace instead of driving. “If the post office is five minutes away, walk there,” says Saul.