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Tag: hypercortisolism

September 3, 2026

Cortisol, Stress, and Insulin Resistance: What the Evidence and Lab Tests Show

How cortisol affects glucose regulation, why everyday stress is not diagnosed with a cortisol test, and when endocrine testing belongs in care.

Direct Answer Cortisol helps the body make fuel available during physical or psychological demands. Sustained pathologic cortisol excess, as occurs in Cushing syndrome, can raise glucose, impair insulin action, increase blood pressure, and alter body-fat […]

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August 26, 2026

Cushing Syndrome Testing: How Late-Night Salivary Cortisol, 24-Hour Urinary Free Cortisol, Dexamethasone Suppression, and ACTH Fit Together

A patient-friendly guide to choosing the right cortisol test, confirming a true pattern of cortisol excess, and using ACTH only when it can answer the next question.

Last evidence review: August 25, 2026 Medical note: This article is for education and does not diagnose Cushing syndrome. Cortisol testing is sensitive to timing, collection, sleep, medications, kidney function, pregnancy, illness, and assay method. […]

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