Medically reviewed by Robert Burakoff, MD Key Takeaways A cortisol test measures the level of cortisol in your body to help ...

Cortisol, known as the “stress hormone,” plays a significant part in regulating various bodily functions. It’s produced by the adrenal glands in response to stress and is critical in helping the body ...

It’s a hot topic in sleep research: the relationship between cortisol and the quality and patterns of sleep. I’ve been talking about cortisol for a while, but I’ve never devoted a standalone article ...

Dear Dr. Roach: I have been diagnosed with low cortisol and put on 15-mg hydrocortisone tablets daily for life by my endocrinologist. I was told that if I get sick with an infection, I should double ...

What is cortisol, and how is it related to stress? Cortisol is often called the "stress hormone" and is released by the adrenal glands -- part of the hypothalamic-pituitary-adrenal axis, a bodily ...

Whether it’s a cup of tea or coffee, many of us struggle to get through the day without our caffeine fix. While it can be beneficial to boost energy levels, reduce fatigue and improve focus, for some ...