Winning margins in the Tour de France can be tight.

A recent study found that early, prolonged treatment with the diabetes drug metformin may prevent or delay the development of polycystic ovary syndrome (PCOS) in adolescence. PCOS affects 7 to 10 percent of women of childbearing age and is the most common cause of infertility, affecting an estimated 5 to 6 million women in the United States.

Walking to the photocopier and fidgeting at your desk are contributing more to your cardiorespiratory fitness than you might think.

All fat is not created equal.

When obese individuals reduce their food intake too drastically, their bodies appear to resist their weight loss efforts, new research shows. The researcher particularly cautions against beginning a diet with a fast or cleansing day, which appears to trigger significant alterations in the immune system that work against weight loss.

Brain cancer patients who are able to exercise live significantly longer than sedentary patients, scientists report.

An exercise training program worked better than a commonly used beta blocker, significantly improving — even curing — patients with a debilitating heart syndrome, according to new research.

Synthetic fat substitutes used in low-calorie potato chips and other foods could backfire and contribute to weight gain and obesity, a new study suggests.

New findings challenge conventional wisdom and find shorter warm-ups of lower intensity are better for boosting cycling performance.

People with high levels of the amino acid cysteine carry 6-10 kilograms more fat than other people. Norwegian researchers studying this phenomenon are generating knowledge which could help to prevent and treat life-threatening obesity. There is a very high correlation between high levels of cysteine and obesity