The Cortisol-Belly Fat Connection: How Chronic Stress is Making You Fat Introduction: The Hormone That Overrides Everything You can have the most well-designed meal plan in existence. You can be consistent with your training, sleeping enough, and hitting your protein targets. But if your cortisol is chronically elevated, you will struggle to lose fat from your midsection — and the harder you push without addressing stress, the worse it often gets. Cortisol is frequently dismissed as a vague "wellness" concern, but its effects on body composition are mechanistically specific, scientifi…