Cortisol helps to wake you up—but a day of high cortisol levels can lead to fatigue, digestive problems, and hair problems.

WebMD explains normal estrogen and testosterone levels in women -- and how they affect health and mood -- before and after menopause.

If cortisol stays elevated consistently, the blood-sugar spike it sets off can lead to weight gain around the midsection. It can also keep you up at night; people with persistently higher cortisol ...

Growth hormone, produced by the pituitary gland, plays a critical role in cell regeneration, growth, and maintaining healthy body tissue, including the brain and vital organs. While synthetic ...

That's because every woman's hormone levels can fluctuate enormously from day to day, person to person, and even pregnancy to ...

So, your brain decreases adrenocorticotropic hormone (ACTH, the hormone that stimulates the production of cortisol), and periods of low cortisol occur. Levels may fluctuate during the day or can ...

This can lead to elevated levels of oestrogen in the body, increasing the risk of hormone-related conditions such as breast cancer. Impact of diet on menstrual health ...

Estrogen is an essential hormone for all people. Men typically have lower estrogen levels than women, but it is still an essential part of many bodily processes. Sex and gender exist on spectrums ...

Blame your high cortisol levels, influencers would have you believe. Online, cortisol—commonly called the “stress hormone”—is a hot topic and frequent scapegoat.