The vagus nerve has been recognized in anatomy for centuries, but its central role in the nervous system became more clearly understood during the 20th century as neuroscience advanced. Medical researchers discovered that stimulating the vagus nerve could influence heart rate, digestion, and mood—leading to the development of implantable Vagus Nerve Stimulation devices for epilepsy and depression, which received FDA approval in the 1990s.
In complementary and wellness practices, interest in non-invasive vagus nerve activation grew significantly in the 2010s as neuroscience research became more accessible to the general public. Practitioners and wellness advocates began incorporating techniques from yoga, breathwork, cold exposure, and manual therapies that are thought to naturally activate the vagus nerve, drawing on both ancient practices and modern neuroscience understanding.
Key figures in popularizing this approach include neuroscientists like Stephen Porges, whose Polyvagal Theory emphasized the vagus nerve's role in social engagement and emotional regulation, and researchers studying the gut-brain connection. This knowledge spread rapidly through wellness communities, yoga studios, and integrative health practices, though it's important to note that non-invasive techniques are distinct from medical VNS procedures and work through different mechanisms.
Today, vagus nerve activation practices are incorporated into many complementary health modalities including yoga, breathwork coaching, somatic therapy, and naturopathic medicine, though evidence for specific techniques remains limited and more research is needed.