The Top 10 Facts Ten things you should know about breast cancer so you can protect yourself against it. WebMD Breast cancer is probably the most feared disease among women because it's so common and its causes remain mostly unknown. Breast cancer is common, but not as common as heart disease.
Breast cancer kills.
It is the leading cause of cancer death for women aged 40 to 55. Every woman is at risk. Some factors increase a woman's risk of developing breast cancer, such as entering menopause after age 50 or not having children. Early detection is the best method for successfully treating the disease. By its count, there are currently about 2 million breast cancer survivors living in the United States.