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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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.
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A new method measures PFAS-based microplastics
by EHN Curators on June 29, 2026 at 12:15 pmNew analytical procedures swiftly reveal the particles that fluoropolymers shed.
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Indoor exposure dominates phthalate intake in Tianjin kids
by EHN Curators on June 25, 2026 at 2:06 pmRecent research conducted in Tianjin, China, provides compelling evidence on how non-dietary indoor exposure pathways significantly contribute to the total phthalate intake in children.
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Popular hair straightening products expose consumers and stylists to toxic chemicals
by Environmental Health Sciences Staff on June 19, 2026 at 7:01 pmA recent review published in Current Environmental Health Reports found that two types of chemical hair straighteners – relaxers and keratin treatments – each contain multiple classes of known toxic chemicals.
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Phthalate exposure in early life may lead to anxiety, rat study suggests
by EHN Curators on June 18, 2026 at 4:40 pmMale rats exposed to the widely used plasticizer di-(2-ethylhexyl) phthalate (DEHP) during early development exhibited increased anxiety behavior as adults, according to a study presented at ENDO 2026, the Endocrine Society’s annual meeting in Chicago.
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An EPA researcher details the agency’s assault on science
by EHN Curators on June 18, 2026 at 11:55 amIn January 2025, the Trump administration began shutting down projects within the EPA’s independent science division that touched on climate change and environmental justice.
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PFAS ‘forever chemicals’ may be linked to multiple sclerosis, especially in women
by EHN Curators on June 17, 2026 at 12:53 pmWomen with higher blood levels of PFAS or “forever chemicals” may be more likely to have multiple sclerosis, according to a new study.
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Dangerous hormone-disrupting chemicals found in US breast milk samples
by EHN Curators on June 15, 2026 at 12:45 pmA study of mothers in Seattle underscores the ‘widespread, systemic problem’ of chemical contamination, experts say.
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Pesticide use linked to childhood leukemia and brain tumors
by EHN Curators on June 9, 2026 at 12:05 pmForty years of studies find higher cancer risks among children exposed during pregnancy and early life to pesticides used on farms, lawns, and pets.
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PMOS and forever chemicals study link
by EHN Curators on June 5, 2026 at 12:35 pmA new study found that mothers who were more exposed to certain “forever chemicals” like PFAS were more likely to have a daughter with PMOS in her teen years later on.
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Nearly 300 studies link the pesticide chlorpyrifos to multi-organ damage
by EHN Curators on June 4, 2026 at 11:55 amA sweeping review of nearly 300 studies finds the pesticide chlorpyrifos damages the brain, hormones, DNA, and the liver, even at “safe” exposure levels.




















