wie kann ich cortisol messen — what symptoms are typical?

Cortisol can be measured via saliva (circadian profile, e.g., morning and evening), blood (total or free cortisol), or 24-hour urine. Typical symptoms of high cortisol (hypercortisolism/Cushing's syndrome) include weight gain especially in face and trunk, thin skin, high blood pressure, mood swings, and fatigue. Low cortisol (adrenal insufficiency) presents with weakness, weight loss, low blood pressure, and hyperpigmentation. These symptoms are non-specific and require clinical correlation. Measurement alone is insufficient for diagnosis; it must be interpreted by a physician in context. The provided context does not contain information on cortisol measurement or symptoms. This answer is based on general medical knowledge, not on the given sources.