HEEDS tracks and summarizes new science on endocrine disrupting chemicals (EDCs) every day. Twice a week we summarize the most important and interesting new studies, in partnership with Environmental Health News, listed below.
For a comprehensive list of all new studies, see our EDC Science Weekly. For a weekly summary of new studies on EDCs in relation to diabetes and obesity, see our Research Roundup on Metabolism Disruptors.
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New study suggests bedroom air purifier may support healthy blood sugar
by EHN Curators on November 12, 2026 at 11:00 amIn preliminary research, people with prediabetes who used a HEPA air purifier overnight for a month experienced modest improvements in blood sugar stability.
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Fine particulate air pollution linked to triple-negative breast cancer
by EHN Curators on November 11, 2026 at 6:52 pmA population-based study in Georgia found that higher fine particulate matter exposure was associated with increased odds of triple-negative breast cancer.
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by EHN Curators on November 9, 2026 at 11:35 am
Women who have greater levels of two specific “forever chemicals” found in drinking water in their blood could be at a higher risk of developing aggressive breast cancer, a new study warns.
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Pesticide risk in tropical countries higher than previously known
by Environmental Health Sciences Staff on November 6, 2026 at 9:21 pmAn article published in Environment International describes a new, more accurate methodology for estimating pesticide use in tropical countries.
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Common pesticide linked to 2.5 times the risk of Parkinson’s disease
by EHN Curators on November 3, 2026 at 4:58 pmA pesticide used for decades in agriculture may be linked to a much greater risk of Parkinson’s disease, and scientists have uncovered a possible explanation for how it damages the brain.
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PFAS: Major study into ‘forever chemicals’ in UK population
by EHN Curators on November 3, 2026 at 1:05 pmThe government is launching the first study to measure PFAS in the UK population to understand the risks.
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Exposure to supposedly “safer” phthalate substitute during pregnancy linked to smaller newborns
by Environmental Health Sciences Staff on October 29, 2026 at 4:31 pmExposure to di(isononyl) cyclohexane-1,2-dicarboxylate (DINCH), a chemical additive commonly used in soft plastics like food packaging, is linked to adverse birth outcomes, according to a large U.S. study published in Environment International. In short:
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Microplastics create dangerous chemicals when mixed with water, researchers find
by EHN Curators on October 26, 2026 at 12:00 pmFor decades, scientists believed that plastics were some of the safest materials around. Now it’s clear how flawed that view was.
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Bisphenol mixtures alter breast tissue development in lab-grown human models
by EHN Curators on October 22, 2026 at 7:48 pmExposure to common chemicals may alter how normal human breast tissue develops, according to a new study from researchers at Tufts University School of Medicine and Boston University.
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Exposure to breast cancer-linked chemicals is widespread in the U.S.
by Environmental Health Sciences Staff on October 16, 2026 at 8:35 pmResearchers at the Silent Spring Institute and the University of California analyzed U.S. government databases for information on the production, sources, exposures, and regulations of environmental chemicals linked to breast cancer, and published their findings in Environmental Health Perspectives.
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Plastic additive meant to replace toxic phthalates linked to lower birth weights, study finds
by EHN Curators on October 15, 2026 at 2:17 pmA study led by NYU Langone Health researchers adds to growing evidence that replacement chemicals can pose their own health risks.
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Mounting evidence shows a common plastic chemical can affect human ovaries
by EHN Curators on October 14, 2026 at 4:10 pmA class of chemicals called phthalates is widespread in our lives, and there are growing concerns about what impact they’re having on our reproductive health.
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Microplastics found in urine of 91% of children may shape behavior
by EHN Curators on October 14, 2026 at 4:04 pmA study of 1,234 Chinese ten-year-olds found microplastics in 91 percent of urine samples and linked certain polymers to behavioral problems.
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Study links common insecticides to lower sperm concentration in men
by EHN Curators on October 8, 2026 at 12:30 pmHigher exposure to common neonicotinoid insecticides was associated with lower sperm quality in men, according to a new study.
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How environmental ‘obesogens’ are rewriting metabolism
by EHN Curators on October 7, 2026 at 4:53 pmThese environmental chemicals are all around us: in our food and products and in the air and water. And they could be contributing to the obesity epidemic.
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Is PFAS exposure linked to hypertension in pregnancy?
by EHN Curators on October 7, 2026 at 4:51 pmA Northeastern study links exposure to PFAS during pregnancy to hyper blood pressure, especially in first-time mothers.
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Pesticide exposure widespread in U.S. children
by Environmental Health Sciences Staff on October 2, 2026 at 7:18 pmA recent study published in Environment and Health found that young children are exposed to a wide range of pesticides during key periods of growth and development.
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PFAS, chemical mixtures linked to childhood obesity risk
by EHN Curators on September 29, 2026 at 12:12 pmA study of 1,301 European mother-child pairs found prenatal exposure to PFAS and chemical mixtures was linked to higher BMI and body fat through age 15.
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New research finds 485 chemicals in US pesticide products linked to breast cancer
by EHN Curators on September 28, 2026 at 11:20 amPaper raises questions about safety of food and other products as early onset breast cancer rates surge worldwide.
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Small, abundant PFAS could impair blood vessel development
by EHN Curators on September 24, 2026 at 2:15 pmNew research indicates that trifluoroacetic acid can interfere with how endothelial cells produce energy, which they need to maintain and grow new blood vessels.




















