Relationship of subjective chronic fatigue to academic performance.

Psychophysiological variables which affect the activity of schoolchildren with subjective chronic fatigue were studied. For 32 Japanese elementary school children, 15 boys and 17 girls in Grade 4, the major finding was that the majority of children with subjective chronic fatigue were less active in school. The motor and academic performance of children with greater subjective chronic fatigue were significantly inferior to those of normal children. Good learning was associated with less drowsiness. These findings suggest that subjective chronic fatigue is closely related to daily activities, especially adjustment to school.