The document discusses the relationship between housing and health. It notes that the National Center for Healthy Housing (NCHH) conducts research, promotes policies, and provides training to increase the integration of health and safety in housing. It also discusses how housing quality, affordability, and neighborhood characteristics can impact physical and psychological health. Specifically, it cites a study finding that 40% of homes have health or safety hazards and how high housing costs, lack of access to services, and concentrated poverty affect health. The document advocates using health impact assessments to systematically consider health in housing and community development decisions.