慢性疼痛影响全球约21%的青少年，且常与焦虑、抑郁共病。尽管PA和SB对普通青少年的心理健康作用明确，但其在慢性疼痛群体中的关联机制尚不清晰。研究探讨了PA与SB的独立及联合模式对慢性疼痛青少年内化问题的影响。

A primary school in Ordos, Inner Mongolia, has incorporated roller skating, frisbee, and other activities into 15-minute breaks and recess sessions. The initiative provides students with two hours of ...