Whacked out hormones cause polycystic ovary syndrome (PCOS), a condition which is thought to affect seven percent of all women, cause period problems and appearance changes.

Obesity continues to be linked to a number of diseases. Now it's shown to be a predictor of who does - and doesn't - survive breast cancer.

Being overweight or obese does increase the risk of developing cancer. So losing the pounds is a good idea. But experts at the University of Texas MD Anderson Cancer Center say some popular diets are healthier and more effective in fighting cancer than others.

Obesity contributes to so many health problems that it seems impossible to list all of them. Results from a recent study now add to that list of diseases that are caused, at least partially, by obesity.

A new study from the Medical College of Georgia has established a link between fat and chemical changes in DNA. This may explain the increased risk of cardiovascular disease and diabetes among obese individuals.