"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.

Estrogen levels dip during perimenopause and menopause, causing unwanted changes like weight gain around the belly. Hormonal shifts, muscle loss, stress, decreased physical activity and poor sleep all ...

For some people, gaining weight is important for health. You may want or need to gain weight if you’ve always been underweight, are losing weight unintentionally, or have an eating disorder. You may ...

Eating less but still gaining weight? Doctors explain how under-eating, skipped meals, hormones, stress and metabolic ...

Quitting smoking often leads to weight gain due to a combination of decreased metabolism and increased eating. The metabolic boost from nicotine accounts for 31% of weight gain, while increased eating ...

Add Yahoo as a preferred source to see more of our stories on Google. And as it turns out, some of the sneakiest reasons for sudden weight gain are related to your hormones. Here, the top culprits and ...