Hormonal
Sleep, particularly slow-wave sleep, enhances the formation of immunological memory by facilitating the redistribution of naïve T cells to lymph nodes and promoting pro-inflammatory cytokine production (e.g., IL-12, IL-1, TNF-alpha).
Prioritize 7-9 hours of quality sleep, especially after vaccination or during illness. Slow-wave sleep is critical for your immune system to 'save' the memory of pathogens. Sacrificing sleep for activity directly impairs your immune defense and vaccine efficacy.
Together these findings indicate a specific role of sleep in the formation of immunological memory. This role appears to be associated in particular with the stage of slow wave sleep and the accompanying pro-inflammatory endocrine milieu that is hallmarked by high growth hormone and prolactin levels and low cortisol and catecholamine concentrations.
Why this rating
The paper is a comprehensive review citing numerous human studies comparing sleep vs. wakefulness, though it acknowledges methodological difficulties in isolating sleep from circadian rhythms.
Source
Sleep and immune function
Luciana Besedovsky et al. · Pflügers Archiv - European Journal of Physiology · 2011
DOI 10.1007/s00424-011-1044-0
More from this paper
- Daytime wakefulness is associated with the mobilization of cytotoxic effector cells (NK cells, CTLs) to peripheral blood to provide immediate immunosurveillance against injury or infection.Good
- Prolonged sleep loss or wakefulness acts as a stressor that suppresses immune function, increasing susceptibility to infection and inflammation.Good
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