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Why do I yawn compulsively while working out? Like it's

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Why do I yawn compulsively while working out? Like it's enough to make my jaw start hurting and I can't stop
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>>42173093

Same happens to me. Your body wants more oxygen
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I've heard it's because of low test but that's probably bullshit.
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>>42173093
happends to me as well. Probably CNS fatigue
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