endocrine disruptors
A condition where the body's endocrine (or hormonal) system is altered by exposure to certain chemicals whose molecular shape matches that of certain hormones. These chemicals are able to fit into receptors on cell surfaces that are meant for hormones, which are the body's messengers. When endocrine disruptors attach to cells they may trigger undesirable behaviors in the cell or prevent legitimate hormones from attaching and delivering their signals.