This Bachelor of Nursing assignment report delves into the multifaceted aspects of chronic illness. It begins by defining chronicity and exploring various chronic diseases, including Alzheimer's, cardiac disease, and diabetes, and their causative factors. The report then examines the nursing perspective on managing chronic and complex illnesses, differentiating between disease and illness, and outlining a tiered approach to illness management. The report further discusses the benefits of self-management in chronic illness, emphasizing the importance of patient knowledge, healthy lifestyle choices, and community support. Additionally, the report introduces the chronic care model (CCM) as an organized approach to managing chronic illnesses, highlighting its core principles of change management and effective communication between patients and care providers. The report also addresses depression as a common comorbidity with chronic illnesses, discussing its impact on patients and the need for immediate care. Finally, the assignment provides a comprehensive overview of the subject matter, supported by relevant references.