新华社北京11月24日电 11月24日,《新华每日电讯》发表题为《擦亮网络"白大褂"，互联网健康科 普迎来新生态》的报道。 在信息洪流与专业权威的碰撞中，互联网健康科普正站在规范转型的十字路口：面对公众日益增长 的健康知识需求，越来越多医护人员借助新媒体平台，让专业医学知识跨越医院围墙，走进千家万户； 与此同时，商业化推广、夸大甚至虚假宣传、"擦边"科普、人工智能滥用等现象，也在冲击医学科普的 科学性与公信力。 近日，国家卫健委印发《医务人员互联网健康科普负面行为清单（试行）》，为互联网健康科普工 作划出"红线"，明确了医务人员在科普过程中必须恪守的行为底线。十个"不得"不仅是对乱象的有力约 束，更为行业健康发展注入规范动能。这一重磅举措将如何重塑互联网健康科普新生态？在规范基础 上，又该如何激励广大医务人员积极创新、扩大优质健康科普供给？围绕这些问题，记者走访了行业管 理部门、专家学者与一线临床医生，聆听他们的思考与实践。 划红线明底线，医学科普科学准确不容有失 随着互联网健康科普日益升温，如何在流量与市场的多重诱惑中守住科学准确的底线，成为行业乃 至公众必须面对的"必答题"。 "他们有时希望我讲一些批量复 ...

Core Viewpoint - Weight rebound after dieting is not merely a failure of willpower but a complex interplay of physiological, behavioral, environmental, and psychological factors [2][3][4][5][6] Physiological Factors - Metabolic adaptation leads to a decrease in basal metabolic rate post-weight loss, causing the body to enter an "energy-saving mode," making it easier to gain weight back when returning to previous eating habits [3] - Hormonal imbalances occur, with leptin levels dropping by 30%-50% and ghrelin levels rising, which can trigger feelings of hunger even after eating [3] - Fat cells retain a "memory" of previous obesity, leading to rapid weight gain when high-calorie diets are resumed, often resulting in a higher fat percentage than before [3] Behavioral Factors - Short-term dieting habits are difficult to maintain long-term, leading to a return to old eating patterns when life becomes busy or stress increases [4] - Emotional eating can resurface, where food becomes a source of comfort during stressful times, leading to uncontrolled calorie intake [4] Environmental Factors - The modern nutritional environment is filled with temptations, such as high-calorie snacks and fast food, which are easily accessible and designed to be appealing [5] - Social situations often lead to increased calorie intake, with studies showing that people consume over 40% more calories in social settings compared to eating alone [5] Psychological Factors - A "task completion" mindset can lead to binge eating after reaching weight loss goals, as individuals may feel liberated from dietary restrictions [6] - "All-or-nothing" thinking can cause individuals to abandon their diet after a minor slip-up, leading to a complete loss of healthy eating habits [6] Strategies to Prevent Rebound - A systematic approach involving dietary, exercise, environmental, and psychological adjustments is necessary to maintain weight loss [7][8] - Gradual caloric transition post-weight loss is recommended, along with a focus on high-protein and whole grain foods to enhance satiety and reduce muscle loss [9] - Incorporating strength training and aerobic exercises can help maintain metabolic rate and muscle mass [10] - Modifying the home environment to reduce access to high-calorie foods and managing social eating situations can support weight maintenance [11] - Cognitive restructuring techniques can help set new goals and establish support systems to maintain motivation and prevent rebound [12]