Avoid those foods which are high in oil
content. Eliminate
alcohol, stop smoking and avoid caffeinated beverages. Practice relaxation techniques and avoid becoming overanxious and to Enjoy a Stress free Life.
In addition to this you need to be active, use any excuse to be physically active, walk daily for at least 30 minutes briskly, use the stairway instead of the elevator, think of walking to the supermarket, enjoy a sport, swimming, badminton lawn tennis etc. This is the key to success.