Assertion: yawning's effect | /r/HasProperty | other damaging
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Source sentences:
text: Frequent yawning helps lower the temperature of the brain, which is why some theorize that often those with brain damage or Multiple Sclerosis have reported abnormally high rates of yawning (the theory is that, by lowering the temperature of the brain, yawning helps minimize inflammation and other damaging effects on the nervous system).