People get fat from eating too much and exercising too little. At least that's the most widely held explanation for the growing obesity crisis around the world. But it's not that simple, says Dr. Achim Peters, a professor of neurology at the University of Lübeck in Germany.
The dreaded 'S' word has been attached to various athletes, with perhaps the biggest name being Tiger Woods, whose PGA ranking has plummeted since the scandal of his affair and subsequent divorce. But how exactly does psychological stress affect athletic performance?