Cortisol curve

Topic

A cortisol curve, or diurnal cortisol curve, represents the natural fluctuation of cortisol levels in the body over a 24-hour period. Typically, cortisol levels peak shortly after waking (known as the cortisol awakening response) and gradually decline throughout the day, reaching their lowest point around midnight. Monitoring this curve is commonly used to assess adrenal function, circadian rhythm health, and the physiological impacts of chronic stress.