What should I know about was ist cortisol?

Cortisol is a vital hormone produced by the adrenal glands, regulating metabolism, immune function, and the stress response. It follows a circadian rhythm: highest in the morning, lowest at night. Chronically elevated levels may indicate chronic stress, Cushing's syndrome, or misuse of corticosteroid medications. Low levels can point to adrenal insufficiency (Addison's disease). The provided context does not contain specific information about cortisol, so this answer is based on general medical knowledge. A single home test measurement is rarely conclusive – cortisol should be assessed over the day or via saliva/urine profiles. If abnormalities are suspected, consult a doctor. MyBody-X tests are not diagnostic; they only offer hints.