Mental exhaustion is a state of fatigue that affects a person's cognitive functions, making it difficult to concentrate, think clearly, or make decisions. It often results from prolonged stress, overwork, or emotional strain, leading to feelings of overwhelm and decreased motivation. Symptoms of mental exhaustion can include irritability, lack of focus, and physical fatigue. It can impact daily life, affecting relationships and productivity. Taking breaks, practicing relaxation techniques, and ensuring adequate sleep are essential for recovery and maintaining mental well-being.