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the claim

Smoking cigarettes causes hair loss in adults.

the verdict
INSUFFICIENT LEANING
Recorded sources
2 sources for · 0 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 smoking cigarettes causes hair loss in adults?

Unclear. Two reviews report a positive association between smoking and hair loss or alopecia severity, but both rest mainly on cross-sectional observational data and one notes several studies finding no association, so the evidence covers only part of the claim.

Verdict: PARTIAL LEAN · 2 sources for, 0 against · Last checked

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 2
Association between Smoking and Hair Loss: Another Opportunity for Health Education against Smoking?
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Association between Smoking and Hair Loss: Another Opportunity for Health Education against Smoking?. (n.d.). cir.nii.ac.jp. https://doi.org/10.1159/000068894

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More for · 1
The Effects of Smoking on Hair Health: A Systematic Review -
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The Effects of Smoking on Hair Health: A Systematic Review - PMC Lock. (n.d.). pmc.ncbi.nlm.nih.gov. https://doi.org/10.1159/000512865

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