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TUESDAY, Oct. 3, 2023 (HealthDay News) – Exposure to ubiquitous chemicals known as PFAS, or per- and polyfluoroalkyl substances, may delay puberty in girls, new research indicates. The study is the first to consider the role hormones play in the delay, according to researchers from the University of Cincinnati. Delayed puberty can lead to negative long-term health outcomes for girls, such as a higher incidence of breast cancer, kidney disease and thyroid disease, said corresponding author Susan Pinney, a professor of environmental and public health sciences at the university’s College of Medicine. “Puberty is a window of susceptibility,” Pinney said in a university news release. “Environmental exposures during puberty, not just to PFAS, but anything, have more of a potential for a long-term health effect. What these have done is extended the window of susceptibility, and it makes them more vulnerable for a longer period of time.” Researchers examined data from more than 800 girls from the Greater Cincinnati and San Francisco Bay areas who were 6 to 8 years old when they joined the study. The girls were examined every six to 12 months to see when they experienced the first signs of breast development and pubic hair. About 85% of the girls in the two geographic groups had measurable levels of PFAS. Researchers also discovered evidence of decreased hormones that were consistent with… read on > read on >