Burnout doesn’t happen overnight—it builds gradually through overcommitment, poor boundaries, and neglecting early warning signs. This comprehensive guide reveals the most effective preventive strategies that actually work: establishing clear work-life boundaries, building genuine support systems, maintaining physical health, and learning to say no professionally. You’ll discover how to recognize the subtle early indicators of burnout across physical, emotional, and behavioral dimensions, plus practical daily habits that prevent workplace stress from accumulating. From micro-breaks and mindfulness techniques to creating transition rituals and managing technology boundaries, these evidence-based approaches help you work more sustainably without sacrificing performance. Learn why saying no is crucial for preventing overcommitment and how to build reciprocal support networks that provide real help during challenging periods.