For even more impressive effects on body composition: aim for exercise forms which elicit a positive hormonal response. This means lifting really heavy things (strength training), or interval training. Such exercise increases levels of the sex hormone testosterone (primarily in men) as well as growth hormone. Not only do greater levels of these hormones increase your muscle mass, but they also decrease your visceral fat (belly fat) in the long term.
It's recommended that adults should try to be active every day and should complete at least 150 minutes of moderate aerobic exercise per week - this could include cycling or walking at a fast pace. Alternatively, you could complete 75 minutes of vigorous aerobic exercise, which could include running or a game of football. You could split this up into easily manageable 30-minute workouts over 5 days of the week.
In a way, moderate-intensity physical activity is that "magic pill" a lot of people are looking for, because the health benefits go beyond keeping your waistline trim: Not only can it reduce your risk of cancer, stroke, diabetes and heart attacks, but studies have shown that physical activity can significantly improve the moods of patients with major depressive disorders.
A sedentary lifestyle is one of the major causes of occurrence of belly fat. If you don’t indulge in any physical activity, and spend most of the time sitting, watching T.V., reading, etc., it is known as a sedentary lifestyle. Lack of regular exercise, or not exercising at all can lead to fat storage around the belly area. In other words, being a couch potato will make you fat.