Human health focuses on the proper functioning of the body and its systems, whereas diseases are conditions that disrupt this balance. Diseases can be communicable (caused by infections) or non-communicable (due to lifestyle, genetics, or environmental factors). The immune system plays a critical role in defending the body against pathogens, while factors like nutrition and hygiene influence health. Studying human health helps in preventing, diagnosing, and treating diseases, improving overall well-being.
