Over the last decade, self-tracking technologies such as wristbands, phone apps, and medical monitors transitioned from being experimental devices to becoming our everyday companions. They count our steps, track our sleep, and even send us signals when our heart skips a beat ahead of time. These technologies have reset the way people know their bodies, from the periodic medical checkup to the continuous and intimate streams of information. But as surveillance widens, its spill-over effects extend far beyond individual empowerment. They are reshaping one of medicine's most ancient and intimate relationships: doctor-patient.

Self-tracking has introduced new sources of stress. Patients will worry when their monitors flag up anomalies that physicians deem irrelevant. Physicians may be overwhelmed with an influx of numbers that are not necessarily clinically helpful each time. The authority of professional judgment is challenged in the process, especially when new devices conflict with professional recommendation. Patients are anxious that something is not being addressed, and physicians are afraid professionalism is defeating confidence through technology inappropriate to diagnostic precision. In this qualitative study, we aimed to explore a newly developed doctor-patient conversation by interviewing doctors. It is less hierarchical, more symmetrical, but more precarious. The technology is no replacement for human connection, but it enables it, both bridge and barrier. To make self-tracking workable in medicine, we must introduce it not only as a means for data gathering but as an action that reimagines communication, trust, and responsibility.

Finally, self-tracking gives us something besides information. It's a reconfiguring of how we exist in relation to our bodies and how we report our health to others. In this study we're able to integrate these devices more thoughtfully, aware of their limitations but also willing to embrace their potential, they could not only improve medical care but enlarge the human relationship at medicine's core...