Glucose tracking may eventually be as simple as wearing a ring.
UC San Diego researchers have developed CHARM, a smart ring prototype that reads glucose from sweat collected at the finger. Early human testing compared its estimates with commercial CGMs and blood-glucose meters to see whether a finger-worn device could follow glucose changes throughout the day.
A ring could make glucose monitoring feel less intrusive and easier to fit into daily life if the technology proves reliable.
CHARM collects sweat without a workout
CHARM does not need you to work up a sweat. According to UC San Diego, a soft hydrogel inside the ring passively draws tiny…
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