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

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 … ...

Gaining weight is shocking. But understanding why and how you gain weight can be empowering on your fitness journey. Discover a few surprising things that cause weight gain. And learn tips for ...

Weight changes are not always about diet or exercise. Experts explain how an underactive or overactive thyroid can affect ...

"Cortisol belly" is a popular term used to describe weight gain mostly around your belly area, or abdomen. Sometimes it's called "hormonal belly." It’s not a medical term or diagnosis, but it could be ...

Am I summer body ready? Should I try the latest 30-day weight loss challenge? Is the new weight loss pill worth the hype? Is how I want to lose weight healthy or the right choice for me? People with ...

If you are an avid protein enthusiast, exercise caution with your intake to avoid any negative consequences. Find out what ...

Cortisol and Weight Gain: Are They Related? Cortisol’s reputation as “the stress hormone” is due to its front-and-center role in your body’s stress response. But what’s the connection between cortisol ...

Bulimia may lead to weight gain rather than loss due to binge eating, as purging doesn’t significantly reduce caloric intake. Weight changes are also possible during recovery. Bulimia nervosa is an ...

If you have hypothyroidism, it’s normal to worry about potential side effects like fatigue, constipation or depression. But if you’ve noticed the numbers on the scale slowly creeping up, you might ...

Weight changes can be confusing, especially for women who track their diet, workouts, and routine closely. One week you feel light, active and in control. The next week, the scale suddenly shows a ...

Does Biotin cause weight gain? Despite internet rumors to the contrary, biotin doesn’t cause weight gain. There's currently no evidence suggesting that taking biotin leads to weight gain (or weight ...