Recently, the Ministry of Education, the National Health Commission, the State Administration for Market Regulation, and the National Bureau of Disease Control and Prevention jointly issued a notice, deciding to launch the 8th National Myopia Prevention and Control Propaganda and Education Month in March 2024 with the theme of "effectively reducing myopia incidence and jointly safeguarding a bright future". It is worth noting that the notice mentions that primary and secondary schools should arrange for students to walk out of the classroom and relax appropriately during each break, and arrange 30 minutes of physical activities during the break every day, so that students have more time to engage in outdoor activities and look far, so that their eyes can rest fully and relieve visual fatigue. The notice jointly issued by multiple departments this time has raised and strengthened the concept of large class breaks from the perspective of preventing myopia. However, in reality, high-quality completion of large class breaks can not only improve and solve vision problems. Extracurricular physical activities not only provide important opportunities for children to participate in physical activities, but also offer unique values that cannot be replaced in a structured classroom environment through rest, play, imagination, thinking, movement, and social practice. These activities not only help children develop sports habits and develop healthy lifestyles, but also help them refocus their cognitive abilities, transfer cognitive tasks, and reduce stress, Make subsequent classroom learning more focused and effective. At the same time, from the perspective of promoting social adaptation, after-school sports activities also provide a platform and space for children's social activities. The development of communication, cooperation, and leadership skills through games and sports can strengthen the social adaptation ability of adolescents, which is of great significance in the long run. At the end of last year, the disappearance of "ten minutes between classes" among primary and secondary school students in some areas attracted widespread social attention. The Ministry of Education immediately made it clear that it will further standardize educational and teaching behavior, resolutely correct the practice of simply restricting students' necessary breaks and activities under the pretext of "ensuring student safety", and intensively deploy and comprehensively investigate relevant issues, and earnestly supervise rectification. We will guide local authorities to establish a long-term mechanism for regular supervision and inspection, and activate children's 10 minute break. Implementing a 30 minute break is another emphasis and reaffirmation on improving the quality of children's breaks. As early as 2007, the State Council issued the "Opinions on Strengthening Youth Sports and Enhancing Youth Physical Fitness", which clearly proposed the comprehensive implementation of the system of large break sports activities, with a unified arrangement of 25-30 minutes of large break sports activities every morning. In April 2021, the General Office of the Ministry of Education issued a notice on further strengthening the management of physical health of primary and secondary school students, which also proposed the same requirements. Multiple relevant policies and regulations provide policy guarantees for the establishment and implementation of extracurricular sports activities in primary and secondary schools. In fact, large breaks have been implemented in many cities and achieved good results. Since 2004, the Education Bureau of Guangzhou City has advocated for large breaks in primary and secondary schools every day. In 2006, a city wide evaluation of large breaks began. In December 2023, the Education Bureau of Luoyang City clearly stipulated that primary and secondary schools should have a 30 minute physical education break every day in the morning and afternoon, which will be regarded as an "open class for principals" and an important part of school physical education work to be guaranteed. Complete the 30 minute break with high quality and motivate the teacher. The break between classes is not a "big mess", make reasonable and efficient use of these three resources