Professional men generally pay more or less attention to their own image. The mature performance of men is not lack of self-confidence, but the pursuit of perfection. The man who has experienced the road of self-slimming has his own theory, so he innovated his slimming theory of "10, 20, 30, 40": "With the willpower of 10, reduce the total food intake by 20%, exercise for 30 minutes every day, adjust the diet structure and reduce the saturated fat by 40%."