Research

Hormonal

Prolonged sleep restriction (4 hours/night for 5 nights) increases cardiovascular disease risk by augmenting proinflammatory responses, specifically through elevated IL-17 and C-reactive protein (CRP) levels, which persist even after recovery sleep.

If you consistently restrict your sleep to around 4 hours per night for several days, your body enters a proinflammatory state characterized by high levels of IL-17 and CRP. This state persists even if you sleep normally for two days afterward. Since these markers are linked to cardiovascular disease risk, prioritizing consistent, sufficient sleep duration is critical for long-term heart health, rather than relying on weekend recovery alone.

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5 nights of sleep restriction increased lymphocyte activation and the production of proinflammatory cytokines including IL-1b IL-6 and IL-17; they remained elevated after 2 nights of recovery sleep, accompanied by increased heart rate and serum CRP, 2 important risk factors for cardiovascular diseases. Therefore, long-term sleep restriction may lead to persistent changes in the immune system and the increased production of IL-17 together with CRP may increase the risk of developing cardiovascular diseases.
Wessel van Leeuwen et al. · PLoS ONE · 2009

Why this rating

Randomized controlled laboratory trial with a control group, measuring multiple biological markers, though the sample size is small (n=13 experimental).

Source

Sleep Restriction Increases the Risk of Developing Cardiovascular Diseases by Augmenting Proinflammatory Responses through IL-17 and CRP

Wessel van Leeuwen et al. · PLoS ONE · 2009

DOI 10.1371/journal.pone.0004589

rct · n=19Cited 482×
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DOI resolved against Crossref · corpus check 2026-06-10

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