Diurnal cortisol tests measure your cortisol levels at various points, from the time you wake up until the time you go to bed. They can help a healthcare professional visualize your adrenal gland ...

Have you heard of the stress hormone? It is called cortisol. As an essential hormone, cortisol is made by the adrenal glands sitting atop the kidneys. It is called the stress hormone because cortisol ...

A diurnal cortisol test shows the pattern of cortisol levels, a biomarker for stress, throughout the day. Abnormal changes in cortisol levels may be an indicator of an underlying mental or physical ...