Collecting more data isn’t the solution to every problem. But in health care, better data often lead to better results. One of the biggest obstacles in diagnosing, treating, and preventing diseases is that medical professionals and researchers need more accurate, detailed, diverse, connected data to better understand threats to people’s health. Digital technology can help. The Nokia Sensing XChallenge recognizes major innovation in health technology, and showcases some of the big numbers behind health at the same time. For example, tuberculosis still kills about 1.4 million people worldwide every year, but new devices can detect epidemics early and prevent the disease’s spread.