It turns out that size does matter.
Breast size, especially the percent of non-fat breast tissue, is a risk factor for the development of breast cancer. Among lean women, having larger breasts has been linked to a higher risk of developing breast cancer. In fact, out of the seven genotypes influencing breast size, a couple are linked to both breast size and breast cancer. Read more about it here: http://www.ncbi.nlm.nih.gov/pubmed/22747683
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