As much as you might wish it to be otherwise, maintaining an ideal weight is a constant, vigilant effort for many people. Temptations abound and society generally provides a more than ample supply of both good and not-so-good options to tempt your palate. You may think your gym membership, positive mental attitude and meal tracking efforts are enough to manage your weight in a manner that works for you. Maybe you're right. But, if your results don't seem to measure up to your efforts, you may be guilty of some undermining behaviors.