Endocrine disrupting chemicals, which can interfere with the actions of hormones in the body, are present in some plastic teethers for babies, new research reveals. The chemicals can leach out of plastic teethers when they are chewed or sucked and enter the babies’ bodies through their saliva. Endocrine disruptors are chemicals that may interfere with the body’s endocrine system and produce adverse developmental, reproductive, neurological, and immune effects. Researchers at Goethe University at Frankfurt am Main found that of the 10 teethers they tested in the lab, two released endocrine disrupting chemicals. The findings were reported in the current issue of the “Journal of Applied Toxicology,” but the brands of the teethers containing the endocrine disrupters were not named.