Assertion: yawning | /r/HasProperty | response
Facets:
value: to boredom
type: CAUSE
value: to an excess of carbon dioxide
type: CAUSE
value: to heightened
type: OTHER
value: typically
type: DEGREE
value: to fever
type: OTHER
value: in order to rid
type: PURPOSE
value: to fatigue
type: CAUSE
value: to lack of stimulation
type: CAUSE
Source sentences:
text: Typically, yawning is a response to fatigue or lack of stimulation.
text: Hippocrates, for example, in 400 B.C. suggested that yawning might be a response to fever, in order to get rid of any bad air in the body.
text: People widely believe that yawning is a response to a shortage of oxygen in the blood or brain, or an excess of carbon dioxide (CO 2 ).
text: If yawning is a response to heightened blood CO 2 , the CO 2 mixtures should increase yawning rate and/or duration.
text: Yawning is, however, a response to boredom.