With the advent of wearable devices and omnipresent monitoring of heart, lungs, blood and more, scientists can now gather unprecedented amounts of personal medical data. Just ask guest Michael Snyder, referred to as “medicine’s most-measured man.” He is the author of Genomics and Personalized Medicine: What Everyone Needs to Know and has collected billions of bytes of his own biodata. Snyder says that all this data can lead to earlier diagnosis than ever before, often before symptoms appear, as he tells host Russ Altman on this episode of Stanford Engineering's The Future of Everything podcast.