title: Mental load and the measurement of heart rate variability.
mesh_terms: D000293:Adolescent; D006339:Heart Rate; D006801:Humans; D008433:Mathematics; D008606:Mental Processes; D008875:Middle Aged; D008954:Models, Biological; D011603:Psychophysiology; D011930:Reaction Time; D012119:Respiration; D014937:Work