Peer Review Report For: Protocol for Conducting a Scoping Review on The Impact of Non-academic Activities on Medical Students' Achievement [version 1; peer review: 1 approved]

Medical education is intellectually demanding and emotionally taxing. Students must maintain academic excellence, acquire professional competence, and manage stress. Traditionally, academic success has been attributed to cognitive ability and classroom performance. However, growing evidence shows that extracurricular or non-academic activities such as research, leadership, athletics, volunteering, and peer teaching positively influence student learning and development. Participation in these activities fosters transferable skills such as time management, teamwork, communication, and resilience, which are vital for both academic success and clinical practice. Moreover, structured extracurricular involvement can protect against burnout, enhance motivation, and strengthen a sense of belonging, all of which are known to support learning outcomes. Despite increasing interest, existing studies remain fragmented and often focus on single activity types or well-being outcomes rather than direct academic achievement. This scoping review aims to map and synthesize the available evidence on how extracurricular participation relates to academic performance among medical students. Findings will clarify the educational value of such activities, identify gaps in the literature, and guide institutional policy and support strategies.