Fitness, that is, the usual physical exercise, can consume body calories to achieve weight loss, but you need to first clarify whether you need to lose weight, you can look at the body mass index, if greater than 24, then you need to lose weight. Before losing weight also need to check their health status, if the health status is not good, it is not recommended to lose weight. Weight loss is mainly the intake of calories is less than the consumption of calories, the body calorie consumption later to achieve the purpose of weight loss. Fitness weight loss has two principles: the first, must adhere to the exercise 3-5 times a week, each exercise intensity of 30-50min or more aerobic training, you can carry out such as brisk walking, jogging, race walking, etc.. The second, after the fitness, although very hungry and appetite, but must control appetite, avoid eating too much food, especially sweet, greasy food, otherwise it will not achieve the purpose of weight loss but make weight rebound increase. The usual life also needs to pay attention to the improvement of lifestyle habits, do not overeat.