Health effects research focuses on studying the impacts that various factors, such as lifestyle choices, environmental exposures, genetics, and healthcare interventions, have on human health. This includes understanding how these factors influence the development of diseases, disabilities, and overall well-being. Researchers in this field use a variety of methods, including epidemiological studies, clinical trials, and laboratory experiments, to investigate how different variables interact and affect health outcomes. The ultimate goal of health effects research is to inform public health policies, healthcare practices, and individual behaviors to promote better health and prevent disease.