Exercise isn’t an exact science—think different strokes for different folks. But one fact rings true: Something is better than nothing. A healthy exercise habit should blend fun and fitness, effort with results. . Instead of dreading the gym, learn…

Step Up Find stairs or a stadium that’s open to the public and run them again and again. As with hills, the walk down is your recovery. Increase the challenge by taking a few at a time. Shadowboxing optional.…