Fig. 3

Results of the structural equation model
Notes: Stdyx estimates are presented. MF = mental fatigue, QS = QI stagnation, QD = QI deficiency, DQ = diet quality, PE = physical exercise, SQ = sleep quality, AP = academic pressure, QPC = QI-pathological constitution. For brevity, the correlational paths between DQ, SQ, PE, and AP are omitted