Wearables like the Apple Watch have long been positioned as devices that can tell us a lot about our bodies and help us live healthier lives. To date, this has largely involved basic fitness-tracking features that can easily be monitored non-invasively like your heart rate, but long-term, the goal has always been to find ways to scrutinize other health markers. One target has long been blood glucose levels for those with diabetes and/or hypoglycemia, but the science isn’t there
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