Christian Bale, Charlize Theron, and several other Hollywood stars pushed their bodies to dangerous extremes for movie roles.

Internal medicine and rheumatology specialist Siobhan Deshauer, MD, solves the mystery case of Leslie, a woman who experienced unexplained weight gain and a host of other symptoms. Following is a ...

Did you gain weight after the holidays? Do not rush to panic: Most of the gain comes from fluids, carbohydrate stores and food volume, not fat.

Eating disorders are often associated with extreme weight loss, but what many people don’t realize is that they can also lead to significant weight gain. This paradox can be confusing and distressing ...

Can weight loss mean loss of life? New research shows that both extreme weight loss and weight gain significantly increase the risk of death in obese individuals with heart disease. In this most ...

Wendy Wisner is a journalist and international board certified lactation consultant (IBCLC). She has written about all things pregnancy, maternal/child health ...

Researchers are exploring why some individuals are naturally super-lean and may struggle to gain weight. The causes of such constitutional thinness offer clues to the physiology of weight control.