Research
Hormonal
Impaired sleep acts as a stressor itself, increasing levels of traditional stress markers like cortisol and exacerbating the effects of initial stress.
Poor sleep doesn't just make you tired; it puts your body in a physiological state similar to being stressed (high cortisol, inflammation). Prioritizing sleep is therefore a direct way to lower your overall stress burden.
GoodSupportsHIGH confidence
Shortened or disturbed sleep causes increases in levels of traditional stress markers (eg, cortisol) and may thus exacerbate the effects of stress.
Why this rating
Supported by multiple studies showing physiological changes post-sleep loss.
Source
Psychosocial stress and impaired sleep
Torbjörn Åkerstedt · Scandinavian Journal of Work Environment & Health · 2006
DOI 10.5271/sjweh.1054
narrative_reviewCited 572×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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