Research
Hormonal
Immune system activation (e.g., by microbial challenges) triggers an inflammatory response that increases sleep duration and intensity, serving as a homeostatic regulation of slow-wave sleep.
When you are sick, your body's increased sleep drive is a biological mechanism to help you recover. Listen to this signal and allow yourself to rest, as sleep actively supports your immune defense during infection.
GoodSupportsHIGH confidence
Stimulation of the immune system by microbial challenges triggers an inflammatory response, which, depending on its magnitude and time course, can induce an increase in sleep duration and intensity, but also a disruption of sleep.
Why this rating
The paper cites animal models and human studies showing this bidirectional link.
Source
The Sleep-Immune Crosstalk in Health and Disease
Luciana Besedovsky et al. · Physiological Reviews · 2019
DOI 10.1152/physrev.00010.2018
narrative_reviewCited 1,419×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
More from this paper
- Prolonged sleep deficiency (short duration or disturbance) causes chronic, systemic low-grade inflammation, which is associated with increased risk of inflammatory diseases such as diabetes, atherosclerosis, and neurodegeneration.Good
- Adequate sleep enhances host defense by improving infection outcomes and vaccination responses, mediated by the induction of a hormonal constellation that supports immune functions.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 →