Research
Hormonal
Black adults experience higher rates of short sleep and poor sleep quality compared to Whites, and this disparity is exacerbated by socioeconomic stressors and unique psychosocial stressors like 'John Henryism'.
If you are Black, you may face unique stressors that disrupt sleep. Recognize that your sleep difficulties may be linked to systemic stress and not just personal habits. Seek support for stress management and prioritize rest as a health necessity.
StrongSupportsHIGH confidence
Blacks had the highest risk and prevalence of poor sleep patterns across various dimensions of sleep health than any other racial/ethnic group... The authors hypothesized that the association was due to John Henryism, a unique stressor whereby marginalized populations may develop a strong work ethic as an attempt to combat/overcome negative stereotypes
Why this rating
Supported by large, objective studies (MESA, JHS, CARDIA) and self-reported data (NHIS, BRFSS).
Source
<p>Are sleep patterns influenced by race/ethnicity – a marker of relative advantage or disadvantage? Evidence to date</p>
Dayna A. Johnson et al. · Nature and Science of Sleep · 2019
DOI 10.2147/nss.s169312
narrative_reviewCited 348×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
More from this paper
- Racial and ethnic minority groups in the US experience significantly worse sleep health outcomes, including shorter duration, lower efficiency, and higher prevalence of sleep disorders, compared to non-Hispanic Whites.Strong
- Among Hispanic/Latino populations, non-US-born immigrants often exhibit a 'sleep health advantage' with shorter sleep durations and fewer insomnia symptoms compared to US-born counterparts and Whites, though this advantage may diminish with acculturation.Good
Related findings · Hormonal
- Initial treatment for type 2 diabetes should be a combination of metformin and either an SGLT-2 inhibitor or a GLP-1 receptor agonist to achieve cardiorenal protection, rather than monotherapy or older agents like sulfonylureas.Strong
- For patients with specific monogenic obesity syndromes (leptin deficiency, POMC/PCSK1/LEPR mutations), targeted pharmacotherapy (recombinant leptin or setmelanotide) is highly effective and should be prioritized, unlike in polygenic obesity.Strong
- Continued weekly administration of 2.4 mg subcutaneous semaglutide prevents weight regain and promotes further weight loss in adults with overweight or obesity, whereas switching to placebo results in significant weight regain.Strong
This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →