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the claim
Morning erections are linked to REM sleep and are unrelated to sexual dreams.
the verdict
INSUFFICIENT LEANING
Recorded sources
2 sources for · 0 against
Is it true that morning erections are linked to REM sleep and are unrelated to sexual dreams?
Unclear. One exploratory case-control study reports that sleep-related painful erections occur predominantly during REM sleep, and a circadian study reports REM sleep peaks in the early morning. Neither addresses whether morning erections are unrelated to sexual dreams, so the dream-independence half of the claim is unsupported.
Verdict: PARTIAL LEAN · 2 sources for, 0 against · Last checked
Evidence for · 2
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Sleep-related painful erection, erectile dysfunction and psychological distress. (2026). doi.org. https://doi.org/10.3389/fpsyt.2026.1778388
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More for · 1
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Persistence of the Circadian Rhythm of REM Sleep: A Variety of Experimental Manipulations of the Sleep-Wake Cycle. (n.d.). cir.nii.ac.jp. https://doi.org/10.1093/sleep/4.3.319
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