http://articles.mercola.com/sites/articles/archive/2004/03/20/exercise-cancer-part-three.aspxReports have shown that excess weight and large sizes have been associated to a higher risk of breast cancer. It remains unclear the amount or intensity of exercise that is needed to produce this effect and at what age the physical activity must occurenCommunityServer 2008.5 SP1 (Build: 31106.3070)