Google Researches Wearable Health Age and Counterfactual Health Coaching Framework

On November 12, 2026, Google Research released a research framework: building a Coachable Health Age (CHA) metric based on consumer wearable device data, and developing a sensor world model, SensorWM. The framework can simulate counterfactual health trajectories of "what if habits change" — for example, predicting health changes from different lifestyle choices over 12 weeks, and generating personalized health coaching plans accordingly. This work combines wearable sensor data with health age modeling and counterfactual reasoning for personalized health coaching. The content is currently a research framework published by Google Research; no follow-up developments have been reported.

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