cognitive fatigue

Cognitive fatigue refers to the mental exhaustion that occurs after sustained periods of thinking, concentration, or problem-solving. It results from the brain's increased effort to process information, which can reduce alertness, impair decision-making, and lower motivation. This fatigue is similar to muscle tiredness after physical activity, signaling that the brain needs rest to restore optimal function. Factors like stress, lack of sleep, or repetitive mental tasks can intensify cognitive fatigue. Taking breaks, managing workload, and ensuring proper rest are essential to helping the brain recover and maintain mental clarity.