SingleArm is a platform designed to facilitate learning from real-world health experiences by enabling users to track changes over time. The service employs a single-arm approach, which focuses on how individuals change relative to their own baseline, rather than making one-size-fits-all comparisons or assigning treatments. This methodology allows users, including biohackers and citizen scientists, to better understand the effects of various interventions, behaviors, or conditions on their health in a structured and transparent manner. SingleArm emphasizes that it is for educational purposes a…