Positives

• One Long COVID patient shared a specific vagus nerve neck-tightness exercise they had found on YouTube, noting that this specific exercise was what finally convinced them to take vagus nerve work seriously, and asking the sub for other techniques to add to their routine Reddit.
  
  
• One long-hauler reported a regular routine of gargling with mouthwash and cold plunges as vagal tone practices they found easy and enjoyable, and shared a nine-item list including cold exposure, deep belly breathing, singing and humming, meditation, and massage Reddit.
  
  

Negatives

• A partially-recovered 36-year-old long-hauler who documented a 4.5-year recovery timeline listed vagal tone work among a bundle of practices he credited for gradual improvement alongside pacing, breathing, medications, and supplements — making individual attribution difficult Reddit.
  
  
• A housebound long-hauler asked the sub for vagus nerve exercises they could do from bed, indicating many of the standard recommendations (cold exposure, plunges, walks) are inaccessible to the most severely ill patients Reddit.
  
  

Hurdles & Side Effects

• A POTS patient investigating their autonomic picture noted that “high vagal tone” is not always desirable and can co-exist with presyncope on standing, meaning more vagal stimulation is not always the right direction — the baseline should be assessed before pushing vagal exercises aggressively Reddit.
  
  
• Techniques require no special equipment but need consistent daily practice to see effects, and most published patient write-ups describe them as one component of a broader nervous-system-regulation routine rather than a standalone intervention Reddit.