Questions people ask about Cortisol Männer

Cortisol is a vital stress hormone that regulates metabolism, blood pressure, and immune response in men. Chronically elevated levels can lead to muscle loss, increased abdominal fat, sleep disturbances, and reduced testosterone production. Many men wonder whether an at-home test (e.g., saliva test) is useful. Such tests can show the daily cortisol curve but are not diagnostic for conditions like Cushing's syndrome or adrenal insufficiency. Cortisol secretion fluctuates strongly (circadian rhythm, acute stress), so a single measurement is unreliable. Factors like sleep deprivation, caffeine, or exercise can skew results. Evidence: The basic physiology is well-established (human-moderate), but the translation to consumer self-tests is often overstated. A doctor should perform clinical tests (e.g., dexamethasone suppression test) if a disorder is suspected. For healthy men, a cortisol test without medical indication offers little added value. Instead, stress management, adequate sleep, and exercise are the most effective levers.