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.
EHN EHN
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Every stage of plastic use — from production to disposal — harms human health
by Environmental Health Sciences Staff on July 30, 2026 at 1:36 pmIn a recent study published by The Lancet Planetary Health, researchers examined the health costs of pollutants released by plastics across their full lifecycle and emphasized the need for international policy that reduces plastic production.
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Q&A: Are environmental chemicals and endometrial cancer linked?
by EHN Curators on July 29, 2026 at 5:19 pmPenn State researchers are investigating how environmental exposures may contribute to endometrial cancer, with a focus on endocrine-disrupting chemicals and rural women’s health.
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Large NYC study adds evidence linking glyphosate to preterm birth risk
by EHN Curators on July 24, 2026 at 12:44 pmA study led by NYU Langone Health showed that pregnant women with higher exposure to glyphosate, the active ingredient in the weedkiller Roundup, faced a significantly higher risk of going into spontaneous labor early.
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Microplastic research points to weaker bones
by EHN Curators on July 24, 2026 at 11:55 amScientists have tracked microplastics from the oceans to the air to human brain tissue. A new review moves the search into the skeleton, and the picture it assembles carries a warning that orthopedic surgeons recognized decades ago.
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Leading cardiology societies call for stronger protections against environmental hazards
by Environmental Health Sciences Staff on July 23, 2026 at 6:28 pmFour international cardiology societies — the American Heart Association, the American College of Cardiology, the European Society of Cardiology, and the World Heart Federation — issued a joint statement urging for regulatory action to address the role of toxic environmental exposures in cardiovascular disease. In short:
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Mount Sinai study links early-life exposure to PFAS with childhood intestinal inflammation
by EHN Curators on July 21, 2026 at 11:33 pmA first-of-its-kind study found that prenatal and early-life PFAS exposure is associated with higher levels of a biomarker of intestinal inflammation measured years later in childhood.
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Foam mattresses can expose infants to a wide variety of toxic chemicals
by Environmental Health Sciences Staff on July 17, 2026 at 8:57 pmAccording to a 2025 study published in Environmental Science & Technology, children’s mattresses release harmful chemicals that can contaminate infants’ sleeping environments — where they typically spend a large portion of their time.
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Microplastics documented for first time in deep-sea ecosystems
by EHN Curators on July 17, 2026 at 12:20 pmA new study found over 90% of deep-sea mollusks to be contaminated with microplastics, and levels were 15 times higher in the Indian Ocean.
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Healthy pregnancy diets cut chemical exposure but may raise pesticide intake, research warns
by EHN Curators on July 16, 2026 at 5:51 pmA US study has found that pregnant women following nutritional guidelines may reduce their exposure to many environmental chemicals from food and everyday products.
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High levels of microplastics found in heart attack survivors
by EHN Curators on July 16, 2026 at 12:18 pmPeople who survived a serious heart attack were found to have higher levels of tiny plastic particles in their blood, providing early evidence that plastic pollution could be an overlooked cardiovascular threat.
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Chemicals in food are an overlooked threat to public health, scientists say
by Environmental Health Sciences Staff on July 9, 2026 at 7:40 pmAn article published in Nature Medicine highlights the ubiquitous presence of synthetic chemicals in the global food supply and emphasizes the need to transition to a safer, more sustainable food system. “Public health should be a priority for policymakers, and the importance of mitigating chemical exposures is still underappreciated.”
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Men’s average testosterone levels have halved in last 50 years, say scientists
by EHN Curators on July 8, 2026 at 12:35 pmResearchers warn of ‘major crisis in male reproductive health’ partly driven by obesity and diabetes.
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Air pollution may cause childhood obesity by disrupting impulse control, study finds
by EHN Curators on July 7, 2026 at 11:57 amBabies exposed to higher levels of neurotoxin more likely to have difficulty controlling impulses later, research shows.
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Air pollution may be changing sperm
by EHN Curators on July 7, 2026 at 11:55 amHarmful nitrogen dioxide and ozone levels could affect fertility and pregnancies.
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New study traces PFAS in Great Lakes food webs over 40 years
by EHN Curators on July 6, 2026 at 5:48 pmResearchers from the University of Notre Dame have developed the most comprehensive look yet at how PFAS moves through the food web in the Great Lakes.
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New gut research reveals microplastics disrupt the body’s anti-inflammatory defenses
by EHN Curators on July 6, 2026 at 4:30 pmIn healthy models, microplastics did not trigger inflammation on their own. However, in those with pre-existing digestive irritation, the plastic exposure made the condition worse.
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New research traces how PFAS move through the Great Lakes and into people
by EHN Curators on July 6, 2026 at 12:15 pmThe study used more than 40 years of data to map fluctuating PFAS levels across species in the region’s food chain.
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EU-approved pesticide found to have potential effects on brain development
by EHN Curators on July 2, 2026 at 11:55 amNew study on fluazinam’s neurotoxicity comes up with different findings from an earlier report based on manufacturer’s data.
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New study traces PFAS in Great Lakes food webs over 40 years
by EHN Curators on July 2, 2026 at 11:48 amUniversity of Notre Dame researchers analyzed nearly 2,500 samples of living organisms and found patterns in the concentration of “forever chemicals” across the Great Lakes region.
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New study finds marine animals are born carrying ‘forever chemicals’
by EHN Curators on July 1, 2026 at 2:21 pmA world-first study has confirmed our greatest fears about an insidious class of toxins: they have accumulated so deeply in the environment that marine animals are now being born contaminated.




















