The vagus nerve is the longest nerve in the body – and it's role in the autonomic nervous system could make it key to reducing anxiety and stress. We asked an expert to explain.

The vagus nerve is the longest nerve in the body u2013 and it's role in the autonomic nervous system could make it key to reducing anxiety and stress. We asked an expert to explain.

Anxiety: feeling stressed and on edge? Here’s how getting to know your vagus nerve could help