Another reason is that you often eat fried food and high-fat food. If you don't pay attention to develop a good eating habit and often eat junk food with high fat and high calorie, then even if you insist on running and exercising, the calorie intake will not increase as much as the calorie. There is also how you walk around to digest after eating in the morning, and then sit there playing with your mobile phone or doing something else. These are the causes of obesity in daily life, and then you have been eating snacks or fruits. It is a long process for you to lose weight, and other reasonable habits should also be arranged. Don't go on a diet or overwork. In addition to running for a day, the rest of the time is fixed, which will only be conducive to the accumulation of fat. It is impossible to exercise regularly and more. Don't think about running every day and then not arranging meals. Also, in fact, more exercise may not necessarily make you lose weight, because more exercise may contract muscles, make them denser and look fat. For example, some people who play basketball or engage in physical exercise will find that their muscle strength becomes bigger after more exercise, and then they become fatter and heavier.
Sticking to running can achieve slimming effect, but if you often overeat or eat some high-fat and high-calorie foods, running will not have much effect, or make your leg muscles bigger and fatter after running.