For years I have suspected the condition of the spine can be a factor with atrial fibrillation and I think I may have posted the study previously but not the chiropractic comments in the link below. The vagus nerve has been discussed many times on this forum. According to this study, the vagus nerve impacts the parasympathetic function of the heart and the nerves in the spine affect the sympathetic function of the heart.
The objective of this study was to investigate the association between cervical spondylosis and arrhythmia. Degenerative disease of the cervical spine might cause compression of the spinal canal and irritation of sympathetic nerves. This study reveals that cervical spondylosis is associated with a 3.10-fold increase of arrhythmia risk compared to patients without cervical spondylosis, especially atrial fibrillation, ventricular and supraventricular tachycardia.
Clinical evidence has shown that cervical spondylosis can cause sympathetic nerve irritation and associated sympathetic symptoms. And instability at the C4-C5 intervertebral space is the most common type causing sympathetic symptoms.
Further information in this link: clarkchiropractic.net/irreg...