Sleep loss as a cardiometabolic risk factor: a narrative review of clinical and public health implications.
Level 5 - mechanism / opinion, no new human data
Narrative review synthesizing existing literature without systematic quantitative pooling.
PubMed 42547683 · doi:10.1007/s44470-026-00144-1
What was done
The authors conducted a narrative literature review by searching PubMed, Scopus, and Google Scholar for peer-reviewed primary and review articles published over the preceding decade. The review synthesized evidence on how sleep deprivation, impaired sleep architecture, and circadian misalignment affect cardiometabolic health across autonomic, hormonal, inflammatory, and behavioral pathways.
What was found
The abstract reports no numerical findings or effect sizes. It describes consistent associations between short or disturbed sleep and increased incidence of hypertension, coronary artery disease, stroke, obesity, type 2 diabetes, and metabolic syndrome. Reported mechanisms include sympathetic activation, elevated cortisol, suppressed growth hormone, disrupted leptin/ghrelin/endocannabinoid signaling, and amplified inflammatory pathways. Limited interventional data indicated that sleep extension can improve appetite regulation, blood pressure, and select glycemic indices.
Why it matters
This paper organizes the biological and behavioral pathways linking sleep loss and circadian disruption to chronic cardiometabolic conditions, highlighting sleep as an important modifiable target for preventive health.
Limits
The abstract provides no quantitative data, effect estimates, or details on the total number of studies included. As a narrative review rather than a systematic review or meta-analysis, study selection is susceptible to bias, and interventional data on long-term outcomes remain limited.
Cited by
- supports Inadequate sleep increases cortisol levels, induces inflammation, and increases insulin resistance.