You may want to think twice before sticking that pacifier back in your baby boy’s mouth: Three new studies, published Tuesday as a single research report, find that heavy pacifier use leads to stunted emotional development among males. The researchers, led by scientists from the University of Wisconsin, did not spend the years it would take to track a single group of kids from infancy through adulthood. Instead, they conducted three separate experiments that attempted to get at the same developmental stages.
