Health indices are numerical measures that help assess the health status of individuals or populations. They can include various factors such as life expectancy, disease prevalence, and access to healthcare services. These indices provide valuable insights into the overall well-being of a community and can guide public health policies. Common examples of health indices include the Body Mass Index (BMI), which evaluates body weight relative to height, and the Human Development Index (HDI), which combines life expectancy, education, and income levels. By analyzing these indices, researchers and policymakers can identify health disparities and target interventions effectively.