Among the trillions of microbes that live in the gut, one obscure bacterium has suddenly become a star of obesity research.

This article was reviewed by Felix Gussone, MD. Key Takeaways: Hormones like insulin, cortisol, thyroid hormones, and testosterone play a direct role in metabolism, appetite, and … ...

Weight fluctuation happens daily, week to week, or month to month. Learn about causes and when to see a healthcare provider about weight changes.

Fat substitutes used in low-calorie foods can contribute to weight gain and obesity, according to a report by the American Psychological Association. A study by researchers at Purdue University using ...

There are physiological processes that begin long before menopause itself, but weight gain isn’t necessarily inevitable ...

With Canadians living longer than ever, age-related weight gain is something a lot of people deal with — especially if you're ...

Explore the truth behind the myth that fat turns into muscle. Learn how to effectively lose fat and gain muscle ...

In another, perhaps counterintuitive study, mice that had all their gut bacteria wiped out were protected from gaining as ...