This essay delves into the evolution of the National Health Service (NHS) in the UK, tracing its development from post-World War II to its current state, emphasizing its role in providing free healthcare and social care. It explores the structure of the NHS, including its funding and the challenges it faces, such as workforce shortages. The essay examines local, national, and global healthcare policies, including the role of various regulatory bodies and the distinction between primary and secondary care. It analyzes local, national, and global trends in illness and wellbeing, highlighting factors influencing health, such as poverty and the aging population, and discussing the crucial role of nurses in addressing these trends through counselling, patient care, and health education. Furthermore, the essay identifies the global health trends and the role of NHS in supporting international health policies. The essay concludes by summarizing the key aspects of NHS, its policies, and its impact on the health and wellbeing of the people.