The Washington Post is reporting on the vagus nerve, a vast network of approximately 200,000 nerve fibers that plays a crucial role in both physical and mental well-being. It said activating this nerve can help relieve stress. However, the Post noted that experts are cautioning against the social media hype surrounding the vagus nerve and its purported benefits. The article aims to clarify what is known about the nerve and what information circulating online may be inaccurate or exaggerated.