This association appears to mirror the winner effect, also observed in the animal literature, whereby victories in competition for mates or food have been associated with elevated testosterone levels, and increased aggression18, 19. (nature.com)
Looking at studies done on other animals (animal literature) has also failed to see any improvement in brain development. (verywellfamily.com)
«We have animal literature, which shows direct links between exposure and adverse health outcomes, the limited human studies, and the fact that 90 to 100 percent of the population has measurable levels of these compounds in their bodies,» said John Meeker, an assistant professor of environmental health sciences at the University of Michigan School of Public Health and a lead author. (scientificamerican.com)