Ever wonder why you feel like crying over a pet food commercial one day but can watch a tearjerker movie completely unfazed the next? Or why your weight seems to fluctuate despite eating the same ...

Male hormone levels maintain day-to-day stability while female hormones experience continuous changes throughout both the menstrual cycle and various life stages.

Thyroid hormone plays a key role in regulating a range of physiologic functions, including metabolism, temperature, heart rate, and growth. It accomplishes this impressive array of activities by ...

A long-studied metabolic hormone, FGF21, also acts as a stress hormone—a discovery that helps explain how psychological stress causes metabolic dysregulation and drives physical disease, according to ...

GLP-1 medications are popular these days, but the body already naturally produces its own GLP-1. Dr. Mercola, a ...

Having a fast metabolism allows the body to burn calories more efficiently, which can help maintain a healthy weight or facilitate weight loss if desired.

Polycystic ovary syndrome, or PCOS, affects an estimated 10-13% of women of reproductive age, according to the World Health ...