Healthy Environment and Endocrine Disruptor Strategies
HEEDS is a non-profit coalition of scientists dedicated to improving communication, coordination and collaboration in the field of endocrine disrupting chemicals (EDCs). HEEDS is developed by scientists for scientists. There are no membership fees. HEEDS works to move EDC science forward, increase collaborations across scientific disciplines, communicate results and improve policy and regulations.
We are now accepting applications for the 2026 Lou Guillette Jr. Outstanding Young Investigator Award!
Due Sept. 30, 2026.
Congratulations to our EDC-North Carolina poster award winners!
Lou Guillette Jr. Memorial Symposium
Recordings and excerpts of the meeting are available online
EDC Policy News
Events
EHN EHN
- US EPA and HHS teaming up on expanded review of glyphosate weedkiller safety
by EHN Curators on September 24, 2026 at 11:50 amU.S. officials said this week they are expanding a scientific review of the widely used weed killer glyphosate, a chemical popular in agriculture but also linked for years to cancer and other health problems. But skeptics doubt the sincerity of the move.
- Opinion: What California's paraquat ban means for pesticide policy
by EHN Curators on September 24, 2026 at 11:40 amWith some U.S. states joining global bans on one weedkiller, it’s time to keep the momentum going.
- US EPA let Bayer pick regulations for destructive weedkiller, documents show
by EHN Curators on September 22, 2026 at 11:15 amThe U.S. Environmental Protection Agency asked firm to choose rules it wanted for dicamba, then put the choices in a proposed federal rule.
- US EPA withdraws guidance preventing PFAS from entering drinking water
by EHN Curators on September 21, 2026 at 12:15 pmThe U.S. Environmental Protection Agency has rescinded 2022 guidance that encouraged states to use Clean Water Act permitting tools to monitor and limit PFAS discharges from industrial facilities.
- Federal judge sides with manufacturers, blocks New Mexico’s PFAS labeling rule
by EHN Curators on September 21, 2026 at 11:55 amNew Mexico’s rule for manufacturers to label consumer products that contain PFAS infringes on commercially-protected speech, a U.S. judge says.
EHN EHN
- Course: Plastics, microplastics, and human health
by Sarah Howard on August 25, 2026 at 12:19 pmThe Physician and Scientist Network Addressing Plastics and Health (P-SNAP) is holding an online course on Tuesdays from Oct. 6 to Nov. 24 geared to physicians, researchers and healthcare personnel. Info/register here.
- Lou Guillette, Jr. Outstanding Young Investigator Award
by Sarah Howard on July 24, 2026 at 12:33 pmDue Sept. 30! HEEDS is accepting applications for the 2026 Lou Guillette, Jr. Outstanding Young Investigator Award. Sponsored by Healthy Environment and Endocrine Disruptor Strategies (HEEDS), the award honors the late scientist and mentor, Lou Guillette, Jr. Information here.
- Webinar: Glyphosate science: cancer, neurotoxicity & endocrine disruption
by Sarah Howard on July 15, 2026 at 10:54 amThis Oct. 6 webinar features Dr. Daniele Mandrioli, who will discuss recent findings from the Global Glyphosate Study, and Dr. Lianne Sheppard will discuss the findings presented at the Seattle Glyphosate Symposium and the resulting consensus statement. Sponsored by the Collaborative for Health and Environment (CHE).
- New online course: EDCs 101
by Sarah Howard on June 22, 2026 at 5:41 pmHEEDS has created an online course on endocrine disrupting chemicals and we are looking for people to try it out. This course is designed to break down how endocrine disrupting chemicals work inside the body and the supporting evidence about how these chemicals change the way we think about health.
- Jerry's on TikTok!
by Sarah Howard on May 27, 2026 at 2:41 pmDr. Jerry Heindel, HEEDS founder, is now on TikTok! The videos are also available as shorts on the HEEDS YouTube channel.
HEED The Call
Your donation will help HEEDS provide education and outreach activities, scientific reports and publications, scientific workshops and webinars as well as other activities and programs to reduce exposure to EDCs and improve health. We are a program of Environmental Health Sciences.
Photo of elk by HEEDS Elder Pete Myers, PhD.