page_title: Yawn
hierarchical_section_title: Yawn
caption_attribution_description: Gebiss eines sibirischen Tigers
context_page_description: A yawn is a reflex. It involves a large, long taking in of air, the stretching of eardrums as the jaw opens wide, and last a breathing out. Pandiculation is the act of yawning and stretching simultaneously. It is easy to see when someone is yawning, but no-one knows what its function is.
  Yawning is commonly associated with tiredness, stress, overwork, lack of stimulation and boredom. In humans, yawning is often triggered by others yawning and is a typical example of positive feedback. This "infectious" yawning has also been observed in chimpanzees and dogs. Cats both yawn and stretch, though not necessarily at the same time.
context_section_description: A yawn is a reflex. It involves a large, long taking in of air, the stretching of eardrums as the jaw opens wide, and last a (sometimes loud) breathing out. Pandiculation is the act of yawning and stretching simultaneously. It is easy to see when someone is yawning, but no-one knows what its function is.
  Yawning is commonly associated with tiredness, stress, overwork, lack of stimulation and boredom. In humans, yawning is often triggered by others yawning (e.g. seeing a person yawning, talking to someone on the phone who is yawning) and is a typical example of positive feedback. This "infectious" yawning has also been observed in chimpanzees and dogs. Cats both yawn and stretch, though not necessarily at the same time.
caption: Yawning tiger
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