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
-
Seven days without plastic contact slashes phthalates and bisphenols in body
by EHN Curators on April 23, 2026 at 4:46 pmA clinical trial found that a low-plastic diet can quickly and effectively reduce levels of plastic chemicals in the human body.
-
Interview: Christopher Borgert on an infamous glyphosate paper
by EHN Curators on April 21, 2026 at 12:30 pmThis pharmacologist gathered more than 60 researchers to push back on the retraction of a Monsanto-linked research paper.
-
Declining PFAS levels in seabird eggs reflect impact of regulatory action
by Environmental Health Sciences Staff on April 16, 2026 at 8:20 pmIn a recent study published by the Journal of Applied Toxicology, researchers examined the levels of toxic PFAS chemicals in the eggs of northern gannets — a species of seabird — over a 55-year period in Canada.
-
RFK Jr. links fluoride to lower IQ. New data tells a different story
by EHN Curators on April 16, 2026 at 12:28 amA new study found people who drink fluoridated water long-term are just as smart as those who don’t, contrary to RFK Jr.’s comments.
-
Severe exposure to ‘forever chemicals’ during pregnancy could lead to childhood asthma
by EHN Curators on April 10, 2026 at 12:25 pmExposure to “forever chemicals” during pregnancy could increase the risk of childhood asthma, according to new research from Sweden.
-
Dozens of chemicals found in pregnant U.S. women, with levels spiking in summertime
by Environmental Health Sciences Staff on April 9, 2026 at 10:41 pmIn a recent study published in Environment & Health, researchers measured chemical exposure levels in pregnant African American women in Atlanta, Georgia, and found contamination across all 12 groups of chemicals analyzed. In short:
-
Michigan study links PFAS to weaker COVID vaccine response
by EHN Curators on April 6, 2026 at 12:22 pmA new health study found that adults exposed to PFAS-contaminated drinking water in Michigan showed a weaker immune response after COVID-19 vaccination.
-
Phthalate plastic chemicals linked to millions of premature births in one year
by Environmental Health Sciences Staff on April 3, 2026 at 3:32 amA recent study published in eClinicalMedicine provided the first estimate of the global health burden from premature (or “preterm”) births that could be attributed to exposure to two types of phthalate plasticizer chemicals.
-
A common plastic toxic may be linked to infant deaths and prematurity, study says
by EHN Curators on March 31, 2026 at 12:35 pmTwo chemicals used to make plastic more flexible are linked to nearly 2 million premature births and the deaths of 74,000 newborns worldwide in 2018, according to a new study.
-
Lifestyle changes may help meaningfully reduce exposure to toxic plastic chemicals
by Environmental Health Sciences Staff on March 26, 2026 at 8:03 pmA new proof-of-concept pilot study published in Toxics suggests that people may be able to reduce the levels of toxic plastic chemicals in their body via lifestyle changes supported by counseling and access to cleaner product options. This study describes the interventions performed on five couples struggling with infertility as a part of the Netflix documentary The Plastic Detox.
-
Study links common chemical to elevated Parkinson’s disease risk
by EHN Curators on March 25, 2026 at 12:05 pmNew research from University of California, Los Angeles links prolonged exposure to the pesticide chlorpyrifos to increased Parkinson’s risk.
-
Baby bottles and sippy cups release bisphenol chemicals
by Environmental Health Sciences Staff on March 19, 2026 at 6:52 pmA 2021 study conducted by the governmental organization Health Canada found that bisphenol A (BPA) and one of its popular alternatives (BPS) leached from every brand of baby bottle and sippy cup tested.
-
PFAS chemicals linked to lower bone density in children
by EHN Curators on March 18, 2026 at 12:35 pmThe “forever chemicals” known as PFAS are increasingly known to potentially pose many threats, the latest of which may be child bone health.
-
Childhood cancers linked to PFAS water contamination
by Environmental Health Sciences Staff on March 13, 2026 at 12:39 amA recent study published by the Journal of Exposure Science & Environmental Epidemiology examined the link between some childhood cancers and water sources contaminated by two PFAS chemicals – PFOS and PFOA – in Los Angeles and Orange Counties, California.
-
Microplastics may be disrupting the body’s immune system
by EHN Curators on March 12, 2026 at 11:50 amMicroscopic plastic particles may build up inside the body’s “cleaner” cells, disrupting a key biological process that helps prevent inflammation and disease.
-
Foam mattresses can expose infants to a wide variety of toxic chemicals
by Environmental Health Sciences Staff on March 10, 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.
-
Every stage of plastic use — from production to disposal — harms human health
by Environmental Health Sciences Staff on March 6, 2026 at 2:36 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.
-
Babies are exposed to more forever chemicals in utero than previously thought
by EHN Curators on March 6, 2026 at 12:10 pmNew research into umbilical cord blood shows a startling number of PFAS.
-
Even ‘microwave safe’ plastic containers can release microplastics into meals, new study warns
by EHN Curators on February 26, 2026 at 12:39 pmHeat can trigger release of microplastics and nanoplastics as well as chemicals linked to hormone disruption, infertility and certain cancers.
-
Microplastics found in prostate tumors in small study
by EHN Curators on February 24, 2026 at 5:31 pmPlastic particles were found at higher levels in tumor tissue than nearby noncancerous tissue, raising questions about the role they may play in tumor development.




















