Real-time, seamless health data sharing is the foundation on which a person-centred, sustainable health system rests. You may not realize how much good your health data can do for your own health as well as the health of everyone across Ontario. When your data is combined with other data sources, it becomes exponentially more powerful because of the vast insights it generates. The more everyone trusts in Ontario's health system, the more everyone will share their health data and the more good can be done with it. To show you the true power of health data, we present eight different categories of Health Data in Action—real world examples of how your health data works and the wide-reaching benefits of sharing your health data.