Abstract: The integration of artificial intelligence (AI) into health informatics is a transformative shift in healthcare that has been witnessed in various aspects, especially in terms of early diagnosis and monitoring of diseases. With the use of predictive analytics and real-time data processing combined with machine learning models, AI has empowered healthcare practitioners to make more informed decisions, optimize patient care, and improve health outcomes. The current paper covers diverse applications of AI in health, where focus will be placed on analysis from EHRs, wearable device information, and medical images to provide information on disease onset forecasts, patient conditions tracking, and personalized treatment planning. Real-life examples are made use of in case study applications to explain the concreteness AI has bestowed on areas like cancer diagnostics, cardiovascular monitoring, and chronic disease management. These examples demonstrate the possibility of AI in the detection of hard-to-spot patterns and risk factors that otherwise would have gone unattended, leading to earlier interventions and more specific and accurate management of health conditions.The paper presents both the huge potential benefits and critical ethical considerations around the use of AI in healthcare. These include data privacy, algorithmic bias, and the transparency of decision-making processes; emphasis is placed on developing proper regulatory frameworks, creating AI systems with the underlying principles of fairness, accountability, and trust in patients. The paper concludes by urging a holistic approach to the deployment of AI, appropriately addressing technical and ethical challenges in order to have AI technologies used in ways that promote equitable, efficient, and effective healthcare delivery.

Keywords: Health Informatics, Artificial Intelligence, Early Diagnosis, Disease Monitoring, Predictive Analytics, HER

| DOI: 10.17148/IARJSET.2024.111205