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The Science of Burnout: Why It's a Resource Equation, Not a Willpower Deficit

"I'm just tired" and "I should be able to push through" are the two sentences that keep burned-out people burned out. Occupational science tells a more structural story: burnout is a three-dimensional collapse — exhaustion, depersonalization, and reduced efficacy — that develops when work demands drain your resources faster than recovery replenishes them. Maslach's 40-year research program and Hobfoll's Conservation of Resources theory converge on the same point: this isn't about who's resilient enough. It's about a system that's running a deficit. Recognizing which dimension you're in isn't pessimism — it's the map that tells you what kind of replenishment actually helps.

76%of 7,500 full-time employees surveyed by Gallup in 2020 reported experiencing burnout on the job at least sometimes — with 28% reporting it very often or always 3 dimensionsin the WHO ICD-11 burnout definition: energy depletion or exhaustion, increased mental distance from work (depersonalization), and reduced professional efficacy — each requiring a different intervention approach d = 0.50+effect size for psychological detachment from work during leisure time on next-day energy levels — Sonnentag's recovery research shows mental switch-off is among the strongest single predictors of feeling replenished the next morning 40+ yearsof MBI-based burnout research since Maslach and Jackson's 1981 scale — now translated into 25+ languages and used in over 90 countries, making it the most extensively validated measure of occupational burnout

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