Before answering this question, let me explain. The subject of this question is vague, and it is not clear what your purpose of fitness is, such as losing fat or gaining muscle. The weight changes caused by these two different goals are also different, and the ways to deal with them are also very different. Based on this, my answer can only be carried out in the direction I assumed. 1, if the body fat is high, in order to reduce fat, the decrease of body fat will cause the appearance of weight loss. In this case, the weights have not changed. It depends on whether your diet has been strictly controlled for two and a half months and whether you have grasped the general principle of low fat, low heat and low sugar. Whether the schedule of work and rest is regular and whether to eat according to the principle of eating less and more meals every day. Furthermore, it depends on whether your fitness plan focuses on aerobic exercise or HIIT, whether you ensure enough exercise time within the heart rate range of burning fat every time, and whether you insist on exercising strictly according to the plan instead of fishing for three days and drying the net for two days. If there are no problems in these two aspects, you may need to adjust your fitness plan. This is because the metabolism of human body is a dynamic balance. For example, at the beginning of reducing fat, the consumption was greater than the supplement, and the original metabolic balance was broken. On the one hand, the body calls for storing energy (such as fat), on the other hand, it actively adjusts the degree of metabolism to cope with the situation that consumption is greater than supplement. After a period of time, when this self-adjustment of the body is completed, the metabolism will reach a new balance, and the situation that the consumption is greater than the supplement will no longer exist, and your weight will naturally not change. It is normal to lose weight and gain muscle at the same time. Because it may appear in a certain period of time, the lost body fat is almost the same as the increased muscle weight, so the weight remains unchanged, so at this time, we can't just look at the weight, but mainly look at the muscle circumference. If you strengthen your muscles, your weight may increase accordingly. At this time, it is necessary to increase protein's intake while referring to the diet plan in the previous article. At the same time, increase the proportion of anaerobic in fitness plan, and grasp the principle of large weight and low number of groups in the weight of equipment used. At the same time, moderately reducing aerobic exercise can increase HIIT, because too much aerobic exercise will not only consume fat, but also muscle. Therefore, the subjects can define their fitness goals first, and then consider their weight from multiple dimensions according to the specific situation, so as to avoid looking at their weight unilaterally and undermining their confidence in fitness.

Answer: Ershui.

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