Elevated insulin levels in the blood appear to raise the risk of breast cancer in postmenopausal women, according to researchers at Albert Einstein College of Medicine of Yeshiva University. Their findings are published in the online version of the International Journal of Cancer.

Higher-than-normal levels of insulin place postmenopausal women at increased risk of breast cancer, researchers at Albert Einstein College of Medicine of Yeshiva University report.

Normally sedentary breast cancer survivors who completed an exercise program reduced the levels of insulin in their blood, revealing a likely link between physical activity and better outcomes, researchers from Dana-Farber Cancer Institute in Boston reported at the annual meeting of the American Society of Clinical Oncology in Chicago.