Burnout is emotional, physical, and mental exhaustion caused by prolonged stress or overwork. It leads to fatigue, irritability, and loss of motivation. Preventing burnout involves balancing work with rest, setting boundaries, and prioritizing self-care. Regular breaks, exercise, and hobbies restore energy and perspective. Recognizing early signs—like constant tiredness or detachment—helps prevent deeper distress. Self-compassion and realistic expectations are essential for maintaining well-being.