Why do I yawn while working out?

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    May 13, 2010 5:30 PM GMT
    I always laugh at myself when it happens (and desperately hope that no on else noticed) but I always get a BIG yawn at least once and sometimes twice while working out.

    I know it is not because I am tired or not sleeping enough, so I am assuming that my body somehow is requesting more oxygen (I do ten minutes of treadmill cardio to start off with, but I am not training SO very hard that I am in anaerobic deficit) so I figure a good yawn is the unconscious response.

    Anybody else do this?

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  • mtneerman

    Posts: 476

    May 13, 2010 8:49 PM GMT
    NakedBudd saidI always laugh at myself when it happens (and desperately hope that no on else noticed) but I always get a BIG yawn at least once and sometimes twice while working out.

    I know it is not because I am tired or not sleeping enough, so I am assuming that my body somehow is requesting more oxygen (I do ten minutes of treadmill cardio to start off with, but I am not training SO very hard that I am in anaerobic deficit) so I figure a good yawn is the unconscious response.

    Anybody else do this?

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    icon_eek.gif i'm sorry, did you say something?
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    May 13, 2010 8:54 PM GMT
    What was the Question?
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    May 13, 2010 8:55 PM GMT
    Oh yeah, your body is craving O2; try deeper breathing while doing cardio.
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    May 13, 2010 9:03 PM GMT
    Yep, happens to me during almost every workout. When it happens (or when I feel it coming on), I take a short break and do breathing exercises to get the oxygen going again, then I'm good for the rest of the workout.

    Then after the workout I have a cup of coffee, a cig, and a nap. icon_biggrin.gif
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    May 13, 2010 9:19 PM GMT
    NakedBudd said blah blah blah blah blah blahblah blah blahblah blah blahblah blah blah

    blah blah blahblah blah blahblah blah blahblah blah blahblah blah blahblah blah blahblah blah blahblah blah blahblah blah blahblah blah blahblah blah blah

    blah blah blahblah blah blah?

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    May 13, 2010 9:19 PM GMT
    dustin_K_tx saidOh yeah, your body is craving O2; try deeper breathing while doing cardio.


    ^ this
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    May 13, 2010 11:35 PM GMT
    I doubt yawning increases O2 intake. I think it's psychological: tiredness, boredom tend to trigger it, doing it seems to dispel nervousness. Plus, it's contagious, suggesting a social function.

    I think it has more to do with teeth-baring and stretching.
  • BlackBeltGuy

    Posts: 2609

    May 13, 2010 11:46 PM GMT
    you need more O2 intake
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    May 13, 2010 11:56 PM GMT

    The Purpose Of Yawning
    Yawning cools the brain when it is overheated. The brain works best when cool and humans as well as other animals have evolved adaptations to accommodate this. There is a thermal window for when it is best to yawn. A study by Andrew Gallup (reported on by Jennifer Viegas, "Yawning cools the brain", ABC Science) from Binghamton University showed that parakeets yawn most when they are in increasing ambient temperatures.

    Yawning when temperatures are higher than body temperature would mean breathing in warm air, considered counterproductive, and yawning when temperatures are cold would mean taking in and sending cold air to the brain, which could cause a thermal shock.

    Sleep deprivation and exhaustion increase deep brain temperatures and also prompt yawning in an attempt to cool the brain. Yawning can also be used as a seizure signal and excess yawning could indicate brain-cooling problems.

    A bout of excessive yawning is often a sign an epileptic seizure is about to occur in an epileptic patient. Multiple sclerosis (MS) involves thermoregulatory dysfunction and sufferers of MS also have bouts of excessive yawning.

    Yawning is also a way to stretch the facial muscles. Muscles in the face are relaxed after an open-mouthed yawn, and yawning with mouth closed is not as effective.

    Interesting Yawning Facts
    Yawning increases blood pressure, heart rate and flexes muscles and joints of the face.

    Yawns usually last for approximately 6 seconds.

    The earliest occurrence of yawning is 11 weeks after conception (i.e., 11 week old fetus).

    55% of people yawn after witnessing someone else yawn. Sometimes the original yawn doesn’t even need to be a real yawn for it to trigger another person’s desire to yawn.

    Yawning becomes contagious after the first year or two of life.

    Yawning in certain primates (e.g., macaques) is an aggressive or dominant behaviour, a way to show off teeth and to threaten.

    Yawning in front of dogs may relax them.

    Yawning is a behaviour that can help maintain attention and alertness


    Read more at Suite101: What Is A Yawn And Why Do People Yawn?: The Evolutionary And Physiological Reasons Behind Yawning http://anatomyphysiology.suite101.com/article.cfm/what_is_a_yawn_and_why_do_people_yawn#ixzz0nrBwPeAX
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    May 14, 2010 1:20 AM GMT
    NakedBudd saidI always laugh at myself when it happens (and desperately hope that no on else noticed) but I always get a BIG yawn at least once and sometimes twice while working out.

    I know it is not because I am tired or not sleeping enough, so I am assuming that my body somehow is requesting more oxygen (I do ten minutes of treadmill cardio to start off with, but I am not training SO very hard that I am in anaerobic deficit) so I figure a good yawn is the unconscious response.

    Anybody else do this?

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    I wish my ass and legs looked like that!
  • momewrath

    Posts: 90

    May 14, 2010 1:27 AM GMT
    I'm mild narcoleptic... so, that's part of why I do it all the time.
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    May 14, 2010 1:32 AM GMT
    I too think guys working out wearing only a jockstrap is super hot...that's..the topic we're discussing right?
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    May 14, 2010 1:54 AM GMT
    Here ya go:

    "The Mystery of Yawning in Physiology and Disease (Frontiers of Neurology and Neuroscience)" by O. Walusinski

    Product Description
    Yawning is a stereotyped phylogenetically ancient phenomenon that occurs in almost all vertebrates. As an emotional behavior and an expressive movement, yawning has many consequences; nevertheless, it has so far been poorly addressed in medical research and practice. Bringing together the latest research from many fields, this volume integrates current insights within embryology, ethology, neurophysiology, psychology, fMRI and pathology. The phylogenetic and ontogenetic aspects of yawning offer an interesting perspective on human development, and its occurrence in neurological diseases - an area explored by only a few investigators - may provide useful clinical information. This book will make valuable and fascinating reading to neurologists, sleep specialists, psychologists, ethologists and pharmacologists, as well as to anybody interested in uncovering the mystery of yawning.

    Knock yourself out.
  • AsianInvasion

    Posts: 13

    May 14, 2010 2:38 AM GMT
    I yawn at the gym when I bored with the workout
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    May 14, 2010 2:41 AM GMT
    No, but I fart when doing sit-ups. I really hate it when other people in the fitness room with me are watching TV rather than using headphones for this reason.
  • Abc123456

    Posts: 336

    May 14, 2010 2:56 AM GMT
    Oxygen deprivation & heat increase. You're using more o2 when you workout. It's happens constantly between my leg sets. Breath hard and drink lots of water
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    May 14, 2010 3:05 AM GMT
    collegekid2004 said
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    I wish my ass and legs looked like that!

    Whatever...buy a mirror
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    May 14, 2010 3:28 AM GMT
    mickeytopogigio saidI doubt yawning increases O2 intake. I think it's psychological: tiredness, boredom tend to trigger it, doing it seems to dispel nervousness. Plus, it's contagious, suggesting a social function.

    I think it has more to do with teeth-baring and stretching.


    it is your body expelling CO2 in an attempt to take in more O2. it often happens when you are bored / tired because these are times when you tend to not breathe deeply. try breathing more while working out
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    May 14, 2010 4:57 AM GMT
    NakedBudd said

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    jesus!! what gym is this?
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    May 14, 2010 5:06 AM GMT
    Yawning is usually an automatic response from the brain when you're not receiving enough oxygen. Make sure not to hold your breath while working out. That way you get all the oxygen you need...and you don't hike up your bloodpressure!
  • hdurdinr

    Posts: 699

    May 14, 2010 8:43 PM GMT
    reading this topic has made me yawn twice, just by reading about yawning! Not even the hot guy doing pull-ups could stop me.....
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    May 15, 2010 6:00 AM GMT
    you stretch your muscles, yawning stretches the diaphragm.
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    May 15, 2010 6:21 AM GMT
    Put ur treadmill on 9.5 start running...I GUARANTEE U, U WILL NOT BE YAWNINGicon_lol.gif
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    May 15, 2010 6:35 AM GMT
    NakedBudd saidAnybody else do this?

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    I´d do that one icon_rolleyes.gif