Show muscles keep working madison WIS sleep is not always accompanied by complete relaxation dr edmund jacobson of the laboratory far clinical physiology chicago told psychologists at the meeting ot of the midwestern lAid western psychological ch association here although the moment of asleep may be marked by sudden or by more or less prolonged progressive relaxation in the muscles or arms and legs muscular tension in the lips or low law muscles may continue is as shown by marked action currents from these muscles dr jacobson reported |