Earlier sleep timing linked to weight loss in adults with prediabetes (44b7eac0-30f3-47af-b405-1c437b7ed296)

Health · First reported 7 Nov, 22:34 · Updated 23:10

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An analysis of a randomized trial involving 196 adults with prediabetes found that earlier sleep timing was associated with greater weight loss over eight weeks, but did not establish that an earlier bedtime causes weight loss. Sleep coaching did not produce significantly greater weight loss or measurable blood-sugar improvement compared with lifestyle education alone. (44b7eac0-30f3-47af-b405-1c437b7ed296; 2af7e4dd-d4b9-4969-b4cb-d02ece998df7)

In an analysis across both trial groups, each hour earlier participants fell asleep was associated with about 1.3 pounds of weight loss over eight weeks; the result shows an association, not proof of cause and effect.
The trial included 196 adults with prediabetes who generally slept fewer than 6.5 hours per night. Both groups received lifestyle education, while one also received coaching to shift bedtime earlier.
Neither group had significant blood-sugar improvement, and sleep coaching did not lead to significantly greater weight loss. The study lasted eight weeks, leaving longer-term effects uncertain.

Summary written by Lux AI from 2 articles

Key facts

Participants: 196 adults with prediabetes who typically reported fewer than 6.5 hours of sleep nightly.
Study duration: Eight weeks.
Reported association: Each hour earlier participants fell asleep was associated with roughly 1.3 pounds of weight loss.
Blood sugar: Neither group showed significant improvement.
Sleep coaching: Participants receiving coaching fell asleep about 12 minutes earlier on average.
Study publication: Nursing Research.