You should work your way up to regular aerobic exercise, such as brisk walking, jogging or swimming, since it is a key factor in achieving permanent weight loss and improving health. Aerobic exercise works the body's large muscles, such as the heart, and should be moderately vigorous, but not exhausting, to be most effective. For maximum benefits, most health experts recommend exercising 30 minutes or more on most, preferably all, days of the week. Try to incorporate some simple calorie-burners into your everyday routine. Exercise not only burns calories, it may increase the body's metabolic rate and actually decreases appetite for some people.
Exercise also has psychological benefits.
According to many health professionals, weight maintenance is the more difficult. Less than a third of the people who lose weight are able to keep it off. Long-term success depends upon continuing the good eating and exercise habits you developed while losing weight. It will take time to make these new habits a permanent part of your life. Know your eating habits.