[fao_]

The vagus nerve sits inside the collarbone right next to the carotid artery. As a doctor told me once, if you're able to physically stimulate your vagus nerve, you need to get to A&E posthaste, lol

[jdadj]

Look up vagal maneuvers. Used by a subset of tachycardia patients to reset to a typical heartbeat.

https://en.m.wikipedia.org/wiki/Vagal_maneuver

[xtracto]

IIRC there's a stage 2 Test device that uses vagus nerve stimulation through the tongue to attenuate tinnitus:

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8120162/

I think it's called the Susan Shore device, and nowadays is the main hope for curing tinnitus to some degree.

[hanniabu]

What's A&E? Googling only shows the cable network

[JohnVideogames]

"Accident & Emergency" - you may know it as the Emergency Room, but it's commonly called A&E in the UK

[firejake308]

Accidents & Emergency is what the Brits call the Emergency Room

[astura]

British for "emergency room."