Cortisol is often called the 'stress hormone' and is linked to weight gain, not weight loss. A common myth is that lowering cortisol directly triggers fat burning. The evidence is clear: chronically elevated cortisol (e.g., from chronic stress or Cushing's syndrome) promotes visceral fat accumulation, cravings, and insulin resistance. Conversely, stress reduction (e.g., meditation, better sleep) can normalize cortisol and indirectly support weight loss – but not as a standalone strategy. Supplements claiming to block cortisol are mostly ineffective or risky. The science is based on numerous human studies (e.g., stress-obesity links), but there is no robust evidence that manipulating cortisol alone leads to significant weight loss without lifestyle changes. Bottom line: Cortisol is one piece of a complex metabolic puzzle, not a direct 'weight loss switch.' Healthy weight management requires balanced diet, exercise, and stress management – not cortisol myths.
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