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Your Nextdoor PCP's avatar

Love this! Clear, practical, and it demystifies why breathwork isn’t “woo”, it’s physiology! From a clinician lens, the key insight is that breathing is one of the few levers we can consciously pull on the autonomic system: a slow diaphragmatic inhale + longer exhale tends to increase vagal (parasympathetic) signaling, improve baroreflex sensitivity, and downshift threat arousal, often enough to show up as a measurable drop in HR/BP in real time. Your “4–8” style cue is a great on-ramp because it’s simple and immediately reinforcing.

Two practical add-ons I often tell patients:

1. Treat it like a micro-dose you can repeat: 3–5 cycles before a difficult email/meeting, after exercise, or as a “sleep on-ramp.”

2. Keep it comfortable (no straining/air hunger). If someone gets lightheaded or panicky, shorten the exhale slightly and build gradually.

And I appreciate the framing: this isn’t a replacement for treating hypertension/anxiety when indicated, but it’s one of the highest ROI, lowest-risk tools we have for daily stress physiology.

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Dr Mark Chern's avatar

Thank you, Jamie. This simple practice feels like a gentle hug for the body and soul.

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