This study explores the integration of human psychology into general management practices through a behavioral approach to enhance organizational effectiveness. Traditional management theories, largely based on rational assumptions, often fail to capture the complexity of human behavior in contemporary workplaces. Using a descriptive research design based entirely on secondary data, this study synthesizes insights from recent literature in psychology, behavioral economics, and organizational behavior. The findings highlight that psychological factors such as cognitive biases, emotions, motivation, and social influences significantly shape managerial decision-making and employee performance. Behavioral interventions, including nudges, emotional intelligence, and the promotion of psychological safety, are found to improve employee engagement, productivity, and innovation. The study also emphasizes the limitations of conventional management models and advocates for a human-centric approach that aligns organizational goals with employee well-being. By integrating behavioral insights into management practices, organizations can foster adaptive, resilient, and high-performing work environments. The research contributes to both theory and practice by providing a comprehensive framework for applying psychological principles in management. It further suggests that adopting behavioral strategies is essential for achieving sustainable organizational success in an increasingly dynamic and complex business landscape.