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the claim

Yawning is a sign that a person is sleepy.

the verdict
CONTESTED PARTIAL
Recorded sources
2 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 Yawning is a sign that a person is sleepy?

Partly. A clinic page and a driver-drowsiness paper treat yawning as an indicator of sleepiness, while a 1913 newspaper piece explicitly denies that yawning signals tiredness or sleepiness. The remaining items concern yawning in neurological or primate contexts and do not address the claim.

Verdict: CONTESTED PARTIAL · 2 sources for, 1 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
Yawning Definition & Causes
Get citation
Yawning Definition & Causes. (n.d.). my.clevelandclinic.org. https://my.clevelandclinic.org/health/body/yawning

Evidence against · 1
YAWNING VENTILATES YOUR LUNGS. (Rodney and Otamatea Times, Waitemata and Kaipara Gazette, 29 October 1913)
1913
Get citation
YAWNING VENTILATES YOUR LUNGS. (Rodney and Otamatea Times, Waitemata and Kaipara Gazette, 29 October 1913). (1913). paperspast.natlib.govt.nz. https://paperspast.natlib.govt.nz/newspapers/ROTWKG19131029.2.56

See more details
More for · 1
Driver Sleepy Mood Detection Using Face Recognition
2022
Get citation
Abraham, V. V. & S, A. G. (2022). Driver Sleepy Mood Detection Using Face Recognition. zenodo.org. https://doi.org/10.5281/zenodo.6781777

also asked as
  • Does yawning mean you are sleepy?
  • Is yawning always a sign of tiredness?
  • Does feeling sleepy cause you to yawn?
  • Is it true that yawning indicates sleepiness?
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