By understanding the past, present, and future of human psychology in connection with evolutionary theory, philosophy, economics, sociology, and other disciplines, one gains a comprehensive understanding of the human condition. The study of psychology has evolved from its roots in philosophy and biology to its current state, influenced by rapid advancements in neuroscience and technology. As we look to the future, the integration of psychology with AI, personalized medicine, and global mental health trends will shape the next era of psychological research and application.