[Solved] The functional school emphasized an approach to practice which involved the expertise of the social work professional in assessing, diagnosing and treating clients. Premature Sexual Activity: Engagement in sexual behaviors at an age significantly younger than what is socially or legally acceptable, potentially leading to various risks and consequences. Biopsychosocial Approach: An integrated viewpoint that considers biological, psychological, and social factors in understanding and treating health issues. Sexually Transmitted Infections: Infections that are primarily spread through sexual contact. Pornographic Movies: Films that depict explicit sexual content for the purpose of sexual arousal and entertainment.