What should I know about cortisol messen?

Measuring cortisol can be useful for diagnosing adrenal disorders (e.g., Cushing's or Addison's), but interpretation is complex. Cortisol follows a strong circadian rhythm (high in the morning, low at night) and is acutely sensitive to stress, sleep deprivation, and food intake. A single blood or saliva measurement provides limited information about long-term stress load. Salivary cortisol day profiles or 24h urinary cortisol are more informative, but still require clinical context. Many direct-to-consumer tests (e.g., saliva kits) claim to assess stress, but evidence for their utility in everyday stress management is weak. Without medical guidance, misinterpretation can lead to unnecessary worry or ineffective interventions. Note: Genetic tests (e.g., COMT) do not directly measure current cortisol levels. For persistent stress symptoms, consult a doctor for established methods like the dexamethasone suppression test.