Mental Endurance Studies show that mental fatigue increases perceived exertion by up to 15% and reduces time to exhaustion by 20%[1]. That figure alone deserves pause. Before muscles reach their physiological limits, before cardiovascular capacity is fully spent, the mind begins to withdraw — quietly, and often without warning. What does endurance mean in psychological terms? Mental endurance meaning centres on an athlete's capacity to sustain attention, decision quality, and
