Di-(2-ethylhexyl) phthalate is in the medical tubing connected to hospital patients. It is in the flexible plastic that makes IV bags squeezable and safe. It is in children's toys, shower curtains, raincoats, vinyl flooring, food packaging, and thousands of other everyday plastic products. It is, by volume, one of the most widely used plasticizer chemicals in the world — and new research presented at the Endocrine Society's ENDO 2026 annual meeting suggests that exposure during the earliest stages of human development may produce behavioral changes that last an entire lifetime.
According to ScienceDaily's June 17, 2026 coverage, MedicalXpress, and the Endocrine Society's ENDO 2026 press release, male rats exposed to DEHP during the prenatal and immediate postnatal developmental period exhibited elevated anxiety behavior as adults — even after all DEHP exposure had completely ended. The behavioral effects persisted into adulthood without continued chemical exposure.