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the claim
Smells affect dreams.
the verdict
INSUFFICIENT LEANING
Recorded sources
4 sources for · 0 against
Is it true that smells affect dreams?
Unclear. A 2024 systematic review reports that olfactory stimulation can influence dreams, though effects vary widely across studies, and a small lab study and a popular neuroscience book likewise indicate some smells can affect dream content. All of this supports only a partial, hedged version of the claim.
Verdict: PARTIAL LEAN · 4 sources for, 0 against · Last checked
Evidence for · 4
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L, S., E, C., M, D., & G, B. (2024). Influencing dreams through sensory stimulation: A systematic review.. doi.org. https://doi.org/10.1016/j.smrv.2024.101908
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More for · 3
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Büttner, A. (2017). Springer Handbook of Odor. play.google.com. https://play.google.com/store/books/details?id=9Rs9DgAAQBAJ&source=gbs_api
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Olfaction-Related Factors Affecting Chemosensory Dream Content in a Sleep Laboratory. (n.d.). mdpi.com. https://www.mdpi.com/2076-3425/11/9/1225/pdf
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PhD, R. J. M. (2024). This Is Why You Dream. books.google.com. http://books.google.com/books?id=OR7JEAAAQBAJ&dq=Smells+affect+dreams.&hl=&as_pt=BOOKS&source=gbs_api
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held for human review17 Oct 2026
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