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the claim
Smelling salts wake people up by irritating the nasal membranes and triggering an inhalation reflex.
the verdict
SUPPORTED
the evidence backs this
Recorded sources
3 sources for · 0 against
Is it true that smelling salts wake people up by irritating the nasal membranes and triggering an inhalation reflex?
Yes. Two reference sources state that smelling salts release ammonia gas, which irritates the mucous membranes of the nose and lungs and thereby triggers an inhalation reflex, matching the claim's mechanism. A 2026 meta-analysis adds that ammonia inhalation acts as a brief arousal stimulus, though it does not address the nasal-irritation reflex itself.
Verdict: SUPPORTED · 3 sources for, 0 against · Last checked
Evidence for · 3
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Smelling salts. (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/Smelling_salts
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More for · 2
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Smelling salts - PMC Lock. (n.d.). pmc.ncbi.nlm.nih.gov. https://doi.org/10.1136/bjsm.2006.029710
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Liu, S., Fan, X., Tan, Z., Gu, J., Huang, Q., Li, H., Macgregor, L. J., & Deng, H. (2026). Smelling Salts or Smoke and Mirrors? Acute Ammonia Inhalation, Arousal, and Physical Performance: A Systematic Review and Meta-Analysis. doi.org. https://doi.org/10.3390/brainsci16080849
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