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the claim

Habitually sleeping less than six hours a night causes cancer.

the verdict
REFUTED
the evidence says no
Recorded sources
0 sources for · 1 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that Habitually sleeping less than six hours a night causes cancer?

No. A 2018 systematic review and dose–response meta-analysis of population studies found that neither short nor long sleep duration was significantly associated with cancer risk, with only a subgroup signal in Asian populations. This directly addresses the claim that habitually sleeping under six hours causes cancer and finds no significant overall association.

Verdict: REFUTED · 0 sources for, 1 against · Last checked

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Evidence against · 1
Sleep duration and the risk of cancer: a systematic review and meta-analysis including dose–response relationship -
Get citation
Sleep duration and the risk of cancer: a systematic review and meta-analysis including dose–response relationship - PMC Lock. (n.d.). pmc.ncbi.nlm.nih.gov. https://doi.org/10.1186/s12885-018-5025-y

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