# Yawning While Exercising

**URL:** <https://boards.straightdope.com/t/yawning-while-exercising/262457>\
**Category:** Factual Questions\
**Created:** [August 31, 2004, 8:05pm UTC](https://boards.straightdope.com/t/yawning-while-exercising/262457 "2004-08-31T20:05:22Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Ludicrous](https://avatars.discourse-cdn.com/v4/letter/l/82dd89/32.png) [@Ludicrous](https://boards.straightdope.com/u/Ludicrous)\
**Post date:** [August 31, 2004, 8:05pm UTC](https://boards.straightdope.com/t/yawning-while-exercising/262457/1 "2004-08-31T20:05:22Z")

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Whenever I jog or go on long hikes or even lift weights, I have a tendency to yawn. Now im not tired mind you, but i do it repeatedly. I rarely notice anyone else yawning as they work out. I’m healthy and am unaware of any medical conditions. Can anyone shed some light on why i would need to yawn while working out? Even a quick succesion of deep breathes does not seem to prevent it.

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**Author:** ![x-ray\_vision](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/x-ray_vision/32/351_2.png) [@x-ray\_vision](https://boards.straightdope.com/u/x-ray_vision)\
**Post date:** [August 31, 2004, 8:19pm UTC](https://boards.straightdope.com/t/yawning-while-exercising/262457/2 "2004-08-31T20:19:48Z")

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[Why do people yawn during or after exercising?](http://www.yesmag.bc.ca/Questions/Stretch.html)

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**Author:** ![ultrafilter](https://avatars.discourse-cdn.com/v4/letter/u/3d9bf3/32.png) [@ultrafilter](https://boards.straightdope.com/u/ultrafilter)\
**Post date:** [August 31, 2004, 8:35pm UTC](https://boards.straightdope.com/t/yawning-while-exercising/262457/3 "2004-08-31T20:35:19Z")

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Oxygen deficit seems like the most likely explanation.