Early Puberty? A New Study Finds that Girls Exposed to Household Chemical Menstruate Earlier

Girls exposed to high levels of a common household chemical had their first period seven months earlier than girls with lower exposures, according to new research by federal scientists. “This study adds to the growing body of scientific research that exposure to environmental chemicals may be associated with early puberty,” said Danielle Buttke, a reproductive physiologist at the US Centers for Disease Control and Prevention who was the study’s lead author.