Breasts: the owner's manual : every woman’s guide to reducing cancer risk, making treatment choices, and optimizing outcomes. This book is the most comprehensive, practical, and accessible guide to cancer prevention and breast health. Breast cancer is one of the leading causes of death for women ages twenty to fifty-nine, and this book offers clear discussions about how to improve breast health and lower risks for cancer, plus clarifying and dispelling many of the myths and falsehoods surrounding this disease.