05/08/2026
Most people know the vagus nerve affects heart rate and stress.
Far fewer people know it also controls the lower esophageal sphincter.
Dr. David Kulla, chiropractor and hiatal hernia specialist, explains that the valve keeping acid in the stomach is not just a mechanical flap. It is a muscle. And like any muscle, it needs nerve signal to close properly and stay shut. That signal comes from the vagus nerve, which runs directly alongside the esophagus.
According to Dr. Kulla, this is also why some people with reflux experience heart palpitations, panic attacks, and anxiety alongside their digestive symptoms. The same nerve is involved. It is not a coincidence.
It is also why, in his view, treating the nerve and the mechanical structure around it matters as much as diet and medication. If the signal is compromised, the valve cannot do its job regardless of what someone eats or takes.
Dr. Kulla’s full interview is at the Reflux Summit. Free to register. May 25-31.
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