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Older Biologic Age Linked to Elevated Breast Cancer Risk

February 22, 2019 - Biologic age, a DNA-based estimate of a person’s age, is associated with future development of breast cancer, according to scientists at the National Institutes of Health. Biologic age was determined by measuring DNA methylation, a chemical modification to DNA that is part of the normal aging process. The study showed for every five years a woman’s biologic age was older than her chronologic or actual age, known as age acceleration, she had a 15 percent increase in her chance of developing breast cancer. The study was published online February 22 in the Journal of the National Cancer Institute.

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