Why do people get better after keeping fit for a while?

I feel that after a period of serious exercise, I can feel my change and growth. These changes are not only physical changes, but also mental and spiritual progress: 1. Appetite and appetite. Sticking to fitness every day increases the calories consumed every day, and the body needs to supplement more energy. With the increase of body muscles, the basic metabolism of the human body will also become larger. Even if you don't exercise, you will consume more calories than the average person. The appetite is bound to be greater than before fitness. In addition, partners who have experience in reducing fat must pay more attention to their daily diet, and their understanding of food is more about ingredients and calories. Boiled vegetables and chicken breast must be familiar. Over time, food with a little taste is considered a deceptive meal. How can it be picky about food? 2. Body and self-confidence. As long as it is a scientific exercise, iron friends who persist for more than 3 months, regardless of whether they have a foundation or not, will feel the changes in their bodies more or less. Seeing myself slowly changing in the mirror, my figure is getting better and better, getting worse and worse. This joy is unparalleled. People who have experienced diseases and sub-health should be the clearest, and the most precious thing is to gradually establish self-confidence in the process of witnessing their own progress, and then generate the motivation to persist and form a virtuous circle. 3. Muscle and strength. With the increase of training intensity, a person's strength and mental state will also be significantly enhanced. Whether you are engaged in manual labor or not, the improvement of strength will naturally help your life. Moreover, I bid farewell to my once weak self and have the ability to help and protect people around me, so that I can feel heartfelt joy. 4. Diligence and self-discipline. After fitness, the body will produce dopamine, and gradually there will be fewer meals and parties. Punch in the gym on time after work, and even quit smoking and drinking. No matter how excited you are, you should go to bed and lie down before 23:00. No matter how tired you are, get up in the morning and cook by yourself. Unconsciously, I completely changed my state. 5. mentality. Some people say that they used to have a bad temper. I want to put someone under the table, but I can't. Power is absolutely enough now, but when someone Diss himself, there will be no more violent thoughts. Only when you meet a bottleneck can you find patience, and only when you meet a real strong person can you understand your own weight. Learning and fitness are all like this. The more you learn endlessly, the more you feel ignorant, and slowly you learn humility.