Seventy-five percent of women consider themselves to be well informed about breast cancer, but much of what they believe is inaccurate, according to a new survey by the National Breast Cancer Coalition. With 40,000 more lives expected to be claimed this year alone by the disease, it's never been more important to arm yourself with the right knowledge to detect and prevent.

Below are four of the most common myths about breast cancer, accompanied by the truth of the matter:

The Belief: 56% of women believe a family history of breast cancer is the biggest predictor for developing the disease.

The Truth: Less than 10% of breast cancer cases are hereditary; more than two-thirds of diagnosed women have no known risk factors. Age is actually the largest single risk factor.

The Belief: 38% of women believe a self-exam at home is the best way to detect breast cancer.

The Truth: Although experts say you shouldn't stop doing self-exams, be aware that mammograms are the only method proven reliable for early detection.

The Belief: 70% of women believe eating a diet rich in fruits, vegetables, and whole grains effectively reduces your chances of breast cancer.

The Truth: An eight-year study of more than 48,000 U.S. women found no significant preventive effect for breast cancer. But, such a diet can help prevent other cancer types and health problems. In addition, exercising and maintaining a healthy weight can reduce breast cancer risk.

The Belief: 86% of U.S. women believe a breast cancer cure will be found in their children's lifetime.

The Truth: To be seen...