Can Cortisol help with Müdigkeit?

Cortisol can help with fatigue only in very specific medical contexts, such as diagnosed adrenal insufficiency (Addison's disease) or under strict medical supervision for certain inflammatory conditions. For general, everyday fatigue caused by poor sleep, stress, or diet, cortisol is not a solution and can be harmful. Unnecessary cortisol use suppresses the body's own production and leads to side effects like weight gain, hypertension, and osteoporosis. Evidence for cortisol treating non-specific fatigue is weak and based on anecdotal reports, not robust clinical trials. Consumer lab tests claiming to show 'low cortisol' are often misleading, as they provide a single snapshot and cannot diagnose adrenal disorders. Anyone experiencing persistent fatigue should consult a doctor for proper evaluation and treatment.