Sleep at least 7 hours a night. Eliminate all sources of light from your bedroom. Get to bed at least 8 hours before you expect to wake up, and spend the last hour before that relaxing with the lights turned down. When you sleep better, you’ll have more energy, and thus move more and burn more calories. Your body will regulate it’s appetite better. Your hormonal profile will improve, allowing you to build more muscle and burn more fat, independent of diet and exercise.
And that raises the most important point: Thinking about exercise as a way to work off food or simply allow you to eat sets up a host of unhealthy and unhelpful thought patterns and habits around food and exercise. For instance, one 2013 research review found that, not only did people generally overestimate how many calories exercise burned—when they did work out, they ramped up their food intake. And if you overeat following exercise, any caloric deficit created during your workout can become a wash. And related: thinking of food as a reward and exercise as a punishment is likely to sabotage your weight loss efforts anyway.
If you want to lose weight you should start by avoiding sugar and starch (like bread, pasta and potatoes). This is an old idea: For 150 years or more there have been a huge number of weight-loss diets based on eating fewer carbs. What’s new is that dozens of modern scientific studies have proven that, yes, low carb is the most effective way to lose weight.
"Only doing abdominal-focused workouts, like crunches, won’t help you banish the bulge. Belly fat is simply where your body stores energy, so you need to take a whole-body approach to tackle it. HIIT training (high intensity interval training) is a great way to burn fat and get your heart rate up. Squats, burpees and treadmill sprints are all examples to try."