The United States has the highest rate of breast cancer in the world. Breast cancer in America is even indicated as the second most common cancer, after skin cancer. Since 1990, death rates have decreased by almost 30%. Nevertheless, it still causes a lot of death, not just in America, but also worldwide. In 2007, it was expected to cause 40,910 deaths in the US alone, which accounts for almost 2% of all death cases.There are several risk factors for breast cancer in America which would be different from one area to another. Most of the cases...