yawning

Introduction

A reflex of simultaneous inhalation of air and stretching of the eardrums, followed by inhalation of breath.

Etiology

• drowsiness
• weariness
• stress
• boredom
• disorders associated with excessive daytime sleepiness
• vasovagal reaction
  • myocardial infarction
  • aortic dissection
• opiate withdrawal

More general terms

• sign/symptom