Research
Hormonal
African American midlife women exhibit worse sleep outcomes, including decreased slow wave sleep and increased cortical hyperarousal, compared to Caucasian women, independent of socioeconomic status.
African American women may face inherent physiological challenges in achieving deep sleep (slow wave sleep) and maintaining sleep continuity compared to Caucasian women. This is not a personal failing but a documented physiological difference that may require tailored sleep strategies and stress management.
GoodSupportsHIGH confidence
Sleep was worse in African American women than Caucasian participants as measured by self-report, visual sleep stage scoring, and NREM EEG power. Racial differences persisted after adjustment for indices of SES.
Why this rating
Robust study design with multi-night PSG, large sample size, and rigorous statistical adjustment.
Source
Race and Financial Strain are Independent Correlates of Sleep in Midlife Women: The SWAN Sleep Study
Martica H. Hall et al. · SLEEP · 2009
DOI 10.5665/sleep/32.1.73
cross_sectional · n=368Cited 324×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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