Yawn

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Yawn
Joseph Ducreux (French) - Self-Portrait, Yawning - Google Art Project.jpg
Joseph Ducreux pandiculatin (baith yawnin an stretchin); sel-portrait c. 1783
OrganismsVertebrates
Biological seestemNervish seestem
HealUnaffectit or benefeecial
ActionInvoluntar
StimuliFatigue
Boredom
Stress
Sleepiness
Ithers mirror neuron reflex
MethodComplete extension o jaw, inhalation, een close, stretchin o he eardrum, exhalation
Duration8 seiconts

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