The human body has a strong compensatory function: when you reduce your daily calorie intake and increase your exercise, your metabolic rate will decrease. For example, your heart rate and oxygen consumption will decrease. In this way, in the past, you consumed 3000 calories a day and only needed 2000 calories to reduce your metabolic rate. Once you reduce the amount of exercise, the original reduced metabolic rate will appear more than the constant calories you consume, so your weight will rebound. So it is a long-term task to keep your mouth shut and exercise your legs.

As we all know, if you want to lose weight, you can't avoid the classic road of "shut up and take your legs". Compared with previous extreme weight-loss methods such as hunger strike, three-day apple meal and seven-day vegetable soup, exercise to lose weight has become a new fashion. However, many weight-loss girls who increase their exercise will struggle with one thing: why do they gain weight after starting exercise?

To answer this question, we should start with body composition and weight loss goals.

Everyone knows that weighing scale can be used for weighing. But what exactly is weight made of? I'm afraid many people haven't thought about it. There are bones, muscles (including visceral muscles and limb muscles), blood, lymph and tissue fluid, and fat. What are the body components of each of the above categories and their proportions are called "body components".

Who wants their bones to be too low in weight? Strong bones are a great health advantage. Low bone weight often means the risk of osteoporosis in middle age.

Who wants too little muscle? Decreased visceral muscles mean decreased metabolic function; Muscle atrophy of limbs means weakness. Generally speaking, the attenuation of muscle is directly related to the decline of metabolic rate, that is, the reduction of energy consumption will make people form a constitution that is "easy to gain weight but difficult to lose weight".

Who wants too little water in his body? Body fluids are extremely important to human health, and the water in the body is also closely related to human youth, skin condition and muscle mass. Babies have the highest body moisture, while the elderly have the lowest body moisture.

Knowing these basic principles will make us understand that when we lose weight, we have to lose fat, not bones, muscles and body water. Only too much fat will bring us the risk of illness and bloated figure. Reducing the proportion of body fat to a reasonable range is the real weight loss.

If you only pursue weight loss without reducing the proportion of body fat, or even reducing useful parts of the body such as bones and muscles, it will damage your health, accelerate aging and reduce metabolic rate, which runs counter to the fundamental goal of weight loss.