For years, breast cancer survivors have been advised to avoid stressing the arm during strength training or other exercise because muscle strain can increase the severity of lymphedema flare-ups.

A new study published in the International Journal of Cancer suggests that postmenopausal women with higher insulin levels may be at greater risk of developing breast cancer.

For women who suffer from migraines, here's a bit of good news: New research shows that your risk for breast cancer may be reduced by as much as 26 percent.

A link has been found between breast cancer survival and two proteins at high levels in the blood that are indicators of inflammation. The study results were reported in the Journal of Clinical Oncology

Breast cancer risk assessment and prevention should start much earlier in life than it currently does, say Canadian researchers who examined breast cancer risk factors in young women. The study appears online and in the June print issue of the The Lancet Oncology.