Assertion: yawning | /r/HasProperty | thermoregulatory mechanism
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Source sentences:
text: As reviewer, Gallup adds his new theory: consistent with the role of the hypothalamus and the PVN, evidence from diverse sources suggests that yawning may be a thermoregulatory mechanism (Gallup & Gallup, 2008).
text: It has also been hypothesized that yawning may be a thermoregulatory mechanism that serves to cool the brain due to elevated temperatures.