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Francis Deng, MD

@francisdeng • 17,873 subscribers

Assoc Prof @HopkinsNeurorad @HeadNeckRads | educator, editor, podcaster interested in diagnostic excellence

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Yawning is not simply a deep breath but a distinct physiologic maneuver that rinses your brain by increasing caudal CSF flow (on the breath in) and then increasing carotid inflow (on the breath out).

Yawning is not simply a deep breath but a distinct physiologic maneuver that rinses your brain by increasing caudal CSF flow (on the breath in) and then increasing carotid inflow (on the breath out).

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