# Relationship between overnight rostral fluid shift and obstructive sleep apnea in nonobese men

Redolfi S, Yumino D, Ruttanaumpawan P, et al. · American Journal of Respiratory and Critical Care Medicine 179(3):241–246 · 2009



## Key finding

Fluid moving from the legs to the neck when lying down narrows the airway — apnea without obesity (Galpin's tipped-glass analogy).



[Read the paper](https://pubmed.ncbi.nlm.nih.gov/?term=Relationship+between+overnight+rostral+fluid+shift+and+obstructive+sleep+apnea+in+nonobese+men)

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Educational summary of published research, not medical advice. Screening scores are not diagnoses. If a score is elevated or you feel unwell, talk to a clinician.

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