Book excerpt: Part of the bestselling What Your Doctor May Not Tell You series, an informative, detailed guide to breast cancer, including treatment and prevention. Each year, over 40,000 women in the U.S. die from breast cancer. With statistics rising, conventional methods of treatment are simply not working, and in some cases may even be harmful. Now, Drs. Lee and Zava explain the potentially life-saving facts, such as: likely sources for the increase in breast cancer, including environment, excessive estrogen, progesterone imbalance, diet, and the dangers associated with traditional hormone replacement methods. Readers will learn strategies for lowering their risk and preventing this devastating disease through a revolutionary hormone balance program.