SAN JOSE: Weight gain isn’t just a number on your bathroom scale. A new Stanford study has found that the entire body undergoes changes for the worse when people pack on the pounds.

If blood is flowing slowly to and from the heart, it affects the function of other major organs in the body. As a result, fluid collects in the tissues, which may cause weight gain and swelling.

Cortisol is a hormone that is produced by the body when your body senses stress. Also known as the stress hormone, cortisol helps the body manage stress. While acute stress, which sometimes occurs ...

A doctor may recommend that people with a low body weight try to gain weight. The most sustainable way to gain weight is to do so slowly. Methods of rapid weight gain may be hard to maintain.