Pulmonology
N95 masks increase brain blood velocity and parasympathetic outflow, yet worsen orthostatic symptoms in a healthy cohort
PMCID: PMC12177107 PMID: 40534183 DOI: 10.14814/phy2.70402 Journal: Physiological reports Publication Date: 2025-6-18 Authors: Pereira TJ, Edgell H Key Points * Mask wearing increased systolic cerebral blood flow but paradoxically worsened orthostatic intolerance symptoms * Total Vanderbilt Orthostatic Symptom Score increased from 12 to 20 during masked trials (p=0.