Physical health refers to the overall well-being and functioning of the body, including physical fitness, nutrition, sleep, and avoiding illness or injury. Research in physical health often focuses on understanding the factors that contribute to good physical health, such as exercise, diet, stress management, and genetics. This research area aims to improve health outcomes, prevent chronic diseases, and enhance overall quality of life through evidence-based interventions and public health initiatives. Studies in physical health may involve clinical trials, epidemiological research, health education programs, and policy recommendations.