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Sleep consistency is a low-cost reliable indicator of nocturnal glycemic control: observations from 227,860 nights of real world, free-living smart ring and continuous glucose monitoring data

2026-03-04 public and global health Title + abstract only
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Nocturnal glucose regulation is modulated by autonomic and circadian mechanisms, yet their dynamic interplay in apparently healthy, free-living populations remains poorly studied. Here, we assessed 227,860 nights of concurrent sleep data from Ultrahuman AIR ring and M1 continuous glucose monitoring (CGM) system across 5849 adults globally to examine nocturnal cardio-metabolic coupling. We found that higher sleep consistency was inversely associated with glucose variability, and vice versa. Unsup...

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