Cohort study, 2025
Does how consistently you sleep during your cycle affect your metabolism?
Overall sleep variability was linked to lower insulin resistance. However, very short or very long sleep nights were linked to higher leptin and insulin levels.
What they did
259 premenopausal women tracked daily sleep for 2 menstrual cycles. Blood tests for leptin, insulin, and glucose were done at 16 points timed to cycle phases.
What they found
Sleep duration from 1 or 2 nights before blood tests was not linked to metabolic markers. But overall sleep variability was associated with lower insulin resistance. Extremely short or long sleep bouts were associated with higher leptin, insulin, and insulin resistance.
What it means for you
How consistently you sleep during your cycle may affect insulin and energy storage. The study only tracked 2 cycles, so it is unclear if results apply long-term.
259
women
2
menstrual cycles tracked
16
biomarker assessment points
About the study
- Original title
- Patterns of Sleep Duration and Metabolic Biomarkers Across the Menstrual Cycle
- Authors
- Dunietz GL, Shedden K, Lyu X et al.
- Journal
- The Journal of clinical endocrinology and metabolism
- Year
- 2025
- Study design
- Cohort study
- Participants
- 259
- What was tested
- None
- Open access
- Yes
- Read the paper
- doi.org/10.1210/clinem/dgae191
Topics
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