🔬 Health & Fitness Research
UC San Diego engineered a sweat ring that passively pulls glucose, ketones, and other biomarkers with accuracy matching commercial CGMs and blood meters. Years from consumer release, but this proves metabolic wearables can scale without adding the friction that killed previous attempts.
Marty’s Take:
Passive extraction is the real headline here, not the biomarker count. Every wearable metabolic sensor before this needed sweat volume you only get from exercise or heat, which is why consumer glucose rings have stalled at “athlete gimmick.” Skip this generation; wait for the passive-sweat version to reach the best fitness trackers list.
Source: Newswise
