How the vagus nerve affects your health

People “hum into their phones, gargle with theatrical enthusiasm, dunk their faces into bowls of ice water, and poke at their ears”, said Katie Edwards and Dan Baumgardt on The Conversation. They are all trying to “activate” their vagus nerve, the new “favourite body part” of the internet.

Social media is abuzz with the transformational potential of vagus-nerve “training”. Stimulate it and reset it, wellness influencers claim, and you can improve your mental and physical wellbeing.

What is the vagus nerve?