The document discusses the biopsychosocial model and how it relates to boys. It notes that health and well-being are best understood as a combination of biological, psychological, and social factors. According to modern neuroscience, psychological and social phenomena are represented in the brain through memories and learning, which involve structural changes. Several sources are referenced that look at the biological processes influencing boys' behaviors in school, how biological differences lead to different behaviors and responses, and how the biological affects the psychological and social. The biopsychosocial model shows how boys' gender affects their brain and body function, which then determines their thoughts and behaviors that are also influenced by their environment.