Do you find yourself nibbling on a bag of pretzels as you stare at a computer screen for hours? When you're sitting on your couch watching TV, do you get to the bottom of that popcorn bowl before the movie is halfway through? If you're bored, anxious, stressed, or even happy, you may be using food as a distraction without realizing it. If you're not careful, mindless eating can derail your diet and lead to weight gain. These 5 pointers will keep you from straying.