Isolation And Stress May Increase Breast Cancer Susceptibility

Social isolation and stress are two environmental mechanisms likely to contribute to breast cancer susceptibility, researchers from the University of Chicago said this week. Their study, published in PNAS, found that isolation led to higher production of a stress hormone, corticosterone, among rats that were kept alone and subjected to the disturbances of colony life as well as stressful situations, such as the smell of a predator or being briefly constrained. Additionally, the isolated rats took longer to recover from a stressful situation than rats that lived together in small groups. read more

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