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 … ...

“If you’ve ever stepped on the scale and wondered, ‘Why am I gaining weight so fast?”, know that you’re not alone,” assures Sean Bourke, MD, Founder and Chief Medical Officer of JumpstartMD.

Obesity is not a single disease. New research shows distinct biological phenotypes that explain why weight gain and treatment response vary so widely. Concept of human genomics research. If weight ...