Diet itself helps to increase calorie burning by boosting metabolism, a process further enhanced while gaining more lean muscle. An aerobic exercise program can burn fat and increase the basal metabolic rate (BMR) in obese adults, studies show that through proper diet over the span of 6 months in obese adults has shown a positive correlation in fitness and mood, as well as a weight loss average of over 27.5% Studies also show reduced level of hunger and several other symptoms, such as inability to get up in the morning and frequent anxiety.