The intersection of digital technology and health care has led to a new world of potential in the medical industry. And while other industries have focused for years on big data, health care is just now beginning to take advantage of its potential. Large data sets are now providing us with the ability to generate new questions and, more importantly, answer old ones. However, the sheer amount of data is not the most important issue—it is what is done with the data that will revolutionize health care and likely change the way disease is approached in the coming decades.