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The vagus nerve carries most of the parasympathetic traffic in the body — the signal that calms heart rate, supports digestion, and lets the system recover from effort. In dysautonomia, post-viral illness and chronic fatigue, that signal is often quieter than it should be. The sympathetic side runs more of the day; the parasympathetic side does less of its share.
Transcutaneous vagus nerve stimulation works on that balance from the outside. A small device delivers low-level electrical stimulation to the auricular branch of the vagus nerve — the part of the nerve that reaches the surface inside the ear. The aim is not to override the system but to give the parasympathetic side a recurring, structured signal, so the regulation it is meant to do has more presence in the day.
Sessions are typically one hour, daily, for an initial course of several months. Most of the work is done at home, after an initial set-up with a physiotherapist trained in the protocol.
This service is for people in the dysautonomia or post-viral pathway whose autonomic picture would benefit from work at the regulation level — typically alongside other parts of the plan. Suitability is decided in consultation, not from a page. tVNS is not the right tool for every presentation, and the assessment looks at whether it is the right tool for this one.
An integrative physiotherapist trained in tVNS reviews the current autonomic picture, fits and demonstrates the device, and sets the protocol — stimulation parameters, session length, and how to integrate it into the day without working against post-exertional limits.
The protocol runs at home. Daily one-hour sessions are usually the starting structure. Where post-exertional symptoms are part of the picture, the session is placed in the day for minimum cost.
Scheduled check-ins — weekly, fortnightly, or monthly depending on the presentation — review what is changing and what is not. Adjustments are made where needed. If the response is clearly not coming, the protocol is reconsidered rather than continued out of inertia.
Most courses run for several months before a decision about continuation. Where the response is sustained, ongoing access to the device is arranged. Where it is not, the time is not extended; other parts of the plan are reweighted instead.
When tVNS is helping, the change is usually felt as the system becoming a little more flexible. Recovery from small efforts takes less. Sleep tends to land more easily. The day has a little more room in it. The change is rarely dramatic and rarely fast; it usually appears across weeks rather than days, and is more visible in what gets easier than in what gets fixed.
Where the change does not come, that is meaningful information too. tVNS is one tool inside the broader biio. plan; the assessment of its effect helps the rest of the plan know where to put its weight.