Trouble sleeping, biological age acceleration and depressive symptoms in three cohorts
In three cohorts, trouble sleeping was associated with higher odds of depressive symptoms. The combined association with biological age acceleration differed: highest odds in NHANES and HRS, but an inverse association in CHARLS. [1]
Automatic summary · not editorially reviewed
The key findings
Trouble sleeping was associated with higher odds of depressive symptoms in NHANES, CHARLS and HRS. [1]
In NHANES and HRS, biological age acceleration combined with trouble sleeping was associated with the highest odds of depressive symptoms. [1]
In CHARLS, biological age acceleration showed an inverse association with depressive symptoms. [1]
The source at a glance
- Study type / format
- Cross-sectional analysis of three cohort datasets (abstract)
- Population / context
- Participants in three cohorts: NHANES, CHARLS and HRS.
- Summary based on
- Study abstract
- Original publication
- July 12, 2026
Sleep problems and depressive symptoms across three cohorts
The study used data from three cohorts: NHANES, CHARLS and HRS. Depressive symptoms were assessed with PHQ-9 or CES-D. In cross-sectional logistic regression, trouble sleeping was associated with higher odds of depressive symptoms in all three: NHANES odds ratio 4.714, CHARLS 6.643 and HRS 1.842. These are associations, not evidence that poor sleep causes depression.
Supporting source [1]
Combined biological age acceleration pattern differed by cohort
Biological age acceleration was calculated as the residual difference between biological age and chronological age. In NHANES and HRS, the combined association of biological age acceleration and trouble sleeping was associated with the highest odds of depressive symptoms. In CHARLS, however, biological age acceleration showed an inverse association with depressive symptoms, and the combined association did not show higher odds. The authors describe these as cross-national differences between U.S. and Chinese populations.
Supporting source [1]
Cross-sectional design limits causal interpretation
The analysis was cross-sectional, so it captures associations at one point rather than change over time. The abstract reports odds ratios and P values but not sample sizes, follow-up or adjustment details. Only the abstract was reviewed; the full text was not reviewed. The findings do not establish that trouble sleeping or biological age acceleration cause depressive symptoms.
Supporting source [1]
How to interpret this
Abstract only; the full text was not reviewed. The analysis was cross-sectional, and sample sizes, follow-up and adjustment details are not reported in the abstract. Associations are not causal.
Based on the study abstract; the full paper, tables and supplementary data were not reviewed.
Source & supporting passages
Wu Y, Xia X, Jing P, Ye F, Wang Q. · europepmc.org · July 12, 2026