Certain subtypes of breast cancer, specifically HER2 positive and triple-negative, show a relationship between obesity and increased risk and a relationship between high levels of physical activity and decreased risk.
Amanda I. Phipps, Kathleen E. Malone, Peggy L. Porter, Janet R. Daling and Christopher I. Li. Body Size and Risk of Luminal, HER2-Overexpressing, and Triple-Negative Breast Cancer in Postmenopausal Women. In Cancer Epidemiology, Biomarkers & Prevention March 1, 2011 DOI: 10.1158/1055-9965.EPI-10-09745 6 7 8 © 2004-2010 Donna Peach. All rights reserved.