Stop the PCS Spiral #Physiologicalsigh #PCSTip #PCSRecovery #ConcussionRecovery #PCSRecovery
7 Jan 2026 · 0 min

0:19
In this brief instructional segment, David Brimacombe demonstrates a component of the "physiological sigh" breathing exercise used for post‑concussion syndrome (PCS) recovery. He advises extending the exhalation so it lasts longer than the inhalation and adding a humming sound during the exhale. He notes that a deeper hum more effectively stimulates the vagus nerve, which can promote parasympathetic activation and aid recovery.










