Running may be great exercise, but without the proper
precautions it can do more harm than good. When you run, you're
putting a tremendous strain on your feet, essentially smashing
them over and over again against a hard surface. A number of
common sense precautions can make your running program both a
safe and healthy activity. Before you begin any exercise
program, a doctor's checkup is recommended. A warm-up is always
necessary; you want to get your muscles loose and relaxed before
putting any strain on them. Be sure to start slow, on a level
track or treadmill, and don't try to increase your distance more
than 10% per week. If you experience mild pain, try a longer
warm-up or shorter runs. If the pain is more intense, you might
want to stop running for a while. Swimming or bicycling can keep
your muscles in shape for when you resume your running routine.
Pain is your body's way of telling you that something's wrong.
If you experience severe pain, stop running and see a doctor.