To compare the mitigating effects of different interventions-low-concentration oxygen-enriched air and exercise-on mental fatigue. Researchers recruited 25 healthy male subjects and had them perform a Stroop task to induce cerebral fatigue, then different interventions (meditation, placebo, low-concentration oxygenenriched air, exercise, and low-concentration oxygen-enriched air plus exercise) were used to provide recovery interventions to subjects, and recovery from cerebral fatigue was assessed by measuring psychometric scales, galvanic skin activity, heart rate variability, and cognitive executive tasks. The results showed that low-concentration oxygen-enriched air and exercise were effective in relieving cerebral fatigue and improving cognitive executive function, and the combined intervention was particularly effective, showing the most comprehensive benefits.  Kulcsszavak: mental fatigue, oxygen enriched air, exercise intervention, cognitive function, cognitive recovery