What if your smartwatch could detect a heart condition before you ever felt a symptom? Stanford cardiologist Dr. Euan Ashley reveals how AI and wearables are quietly reshaping the future of healthcare, from spotting silent strokes to redefining what “normal” health looks like. Why do we service our cars and inspect bridges, but wait for our bodies to break down before acting? That question sets the stage for a deep dive into proactive medicine, where tools like the Apple Watch are already catching atrial fibrillation early, and continuous health monitoring could alert us to problems years in advance. Beyond the wrist, AI is transforming everything from clinical documentation to access to specialist care. But big questions remain: Can algorithms be truly equitable? Will personalized prevention ever reach everyone? From ambient AI scribes to the end of “one-size-fits-all” medicine, this is a glimpse into healthcare’s next chapter, where your heart might be talking long before you notice.