What can the Cortisol senken tell you — and what not?

A test like 'Cortisol senken' (likely a home saliva or blood test) can provide a snapshot of your current cortisol level. This may help you see daily patterns – for example, whether your cortisol is high in the morning and low at night. However, its limitations are significant: a single measurement cannot diagnose conditions like adrenal insufficiency, Cushing's syndrome, or chronic stress disorders. Clinical diagnosis requires multiple, timed lab tests (e.g., dexamethasone suppression, 24-hour urine) under medical supervision. Cortisol is also influenced by acute stress, sleep deprivation, caffeine, and inflammation – factors a home test cannot control. The evidence for the utility of such consumer tests is weak; they are often marketed without robust clinical validation. A high or low reading alone does not justify self-treatment or supplementation. Safety note: misinterpretation can lead to false reassurance or unnecessary anxiety. Always consult a healthcare professional for persistent symptoms like fatigue, weight changes, or sleep issues.