Chemicals in the everyday products we use in our homes may be negatively affecting our hormones, says a newly-released study by WHO, the World Health Organization. The study, titled “State of the Science of Endocrine Disrupting Chemicals,” says pesticides, plasticizers and product additives contain endocrine-disrupting chemicals (EDCs). They act like synthetic hormones, throwing off the body’s natural hormonal system. A hormone is a chemical messenger produced in the glands in our endocrine system and released in our blood and affects everything from mood to metabolism.