When you know that a stressful week is about to begin, prepare yourself. You'll be tempted to seek out the nearest vending machine for high-calorie comfort foods, such as cookies or chips, as the stresses pile up, so be sure to plan ahead. Eat a balanced diet—never skip out on a healthy breakfast—and pack snacks, such as grapes, carrots, and pretzels, to keep you going all day long. Simplify dinner by preparing no-frills meals for your family, such as veggie-filled salads or tasty turkey burgers.

Exercise is another great way to combat stress. Too busy to hit the gym? Incorporate physical activity into your daily schedule by going on a power walk during your lunch hour or taking the stairs instead of the elevator. By being prepared to combat stress, you'll keep control over your weight and overall health.

When you start feeling stressed, don't let it overtake you. Address the stress before it builds with a quick relaxation technique, such as deep breathing or focusing on something that makes you feel calm.

After a stressful day, let yourself relax by taking a warm bath, chatting with a friend, or watching a funny movie. You may also find it helpful to write in a journal about your stress, and then compose a list of ways to reduce your anxieties. You won't be as tempted to overindulge on junk food when you're feeling calm and composed.

Being stressed can often make you feel tense and negative, and it's easy to forget the joys in your life. Planning for an active afternoon spent hiking, a relaxing spa day, or a fun family vacation can help you focus on the positive and work through your stress.

Don't let stress take over your life, or affect your weight. Be prepared, eat healthy, and exercise to keep your body in check, and your stress under control.