How does excess sugar affect the developing brain throughout childhood and adolescence? A neuroscientist who studies nutrition explains Posted byLina Begdache January 11, 2022January 17, 2022 Leave a comment on How does excess sugar affect the developing brain throughout childhood and adolescence? A neuroscientist who studies nutrition explains Kids often crave processed sugary foods. But research shows that consuming too many treats during childhood and adolescence may lead to behavioral and emotional problems.