The survey study of SCL-90 on the mental health of secondary school students showed that in the first year, it accounted for only 6.8%, while in the third and fourth grades, it accounted for 62.4%. More than half of the younger age group are first-year students who, in the excitement of crossing campuses and winning exams, immerse themselves in the joy of adapting to a new environment, thus achieving the best mental health status. In contrast, the older age group, mostly high school students, face tense learning, interpersonal conflicts, and difficulties in finding jobs after graduation, leading to more psychological problems than the younger age group. It is suggested that schools carry out mental health education according to different genders, grades, and ages.
(Note: The phrase "nike free run" seems out of context and might be a mistranslation or an irrelevant insertion, so it's omitted in the translation.)