Some obese patients want to lose weight by dieting, but psychological pressure, fear and worry constitute a great obstacle. They worry about being hurt by dieting, but they are not worried about getting sick or even dying because of obesity. Most of this fear and worry stems from the traditional, still popular, maternal and endless desire to eat. When I was young, my mother always nagged me to eat more vegetables and snacks. Over time, it has become a prejudice that only eating more can make you healthy, and the fatter you are, the healthier you are. This deep-rooted misconception has set an invisible obstacle to dieting, and it is also the main reason for people who want to diet and lose weight to have fear and worry. Obese patients also have psychological worries about dieting and losing weight. Some people have heard some rumors: an actress, with a rich family, starved to death because of dieting. However, these "rumors" were misinformed among the greedy and obese people, which cast a shadow on many people's psychology.