COLUMN DATA CENTERS For years, a healthy indoor environment has been determined by the measurement of CO2 and subsequent dilution of that air with outdoor air ventilation per ASHRAE Standard 62, Ventilation for Acceptable Indoor Air Quality. Standard 62 is a prime example of the evolution of health care where there is increasing conversation around the importance of such a standard on human health. Outside the built environment, the industry relies upon Federal Standards for Environmental Air Quality as managed by the Environment Protection Agency (EPA) in the U.S. Solutions to integrate outdoor environmental conditions with indoor conditions and human health are largely lacking. Opportunities for significant digital data integration of these sources and subsequent big data analytics abound. Closing Comments The digitization of humans and their subsequent digital footprints will lead to new insights in human health management. The transformation from a hardware-defined healthcare system to software-defined health-care (SDH) system will create significant amounts of new digital data on health care. The resulting insights and data discoveries will revolutionize health care and the historical problems. Groups such as ASHRAE SSPC 62 are continuously revisiting the idea of addressing the topic of health. Digital environment integration is inevitable and a necessary component of digital health care. The digitization of humans will transform the way we view the world. It will transform our approach to health; what we eat, how we exercise, what we consider healthy environments, and how we respond to the new digital footprints we leave behind. References 1. Institute for Health Technology Transformation. 2013. "Transforming Healthcare Through Big Data." 2. Sales figures predicted by IHS, an industry forecaster. www.info.hotims.com/54425-20 60 ASHRAE JOURNAL ashrae.org FEBRUARY 2015