Recent research has found that insufficient sleep duration and late sleep onset were associated with increased glycaemic variability in middle-aged and older adults.
Suboptimal sleep, including inadequate length and late timing, is known to impair glucose metabolism, so researchers investigated the association of long-term sleep duration and onset timing with glycaemic dynamics across 1156 middle-aged and older adult participants from Guangdong, China.
The participants wore a masked continuous glucose monitoring device for 14 consecutive days, recording interstitial glucose levels every 15 minutes, to assess glycemic variability and control.
Compared with adequate sleep duration, severe inadequate sleep duration was associated with a 2.87% increase in CV (coefficient of variation) for glycaemic variability. Time in range was lower in the severe inadequate sleep duration group than in the adequate sleep duration group and persistently late sleep onset was significantly associated with greater glycaemic variability. A combination of inadequate sleep duration and late sleep onset was also associated with elevated glycaemic variability.
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