title: Physical activity and efficiency of mental work.
mesh_terms: D000328:Adult; D000367:Age Factors; D002648:Child; D003071:Cognition; D004526:Efficiency; D006801:Humans; D008297:Male; D008606:Mental Processes; D009043:Motor Activity; D005082:Physical Exertion; D011340:Problem Solving; D013997:Time Factors; D014937:Work