I stumbled on this Twitter thread and found it super interesting, and then thought... hey, I wonder if that would help calm people's nerves before an LSAT? Obviously this is a random twitter thread and I'm no expert, but it's an interesting idea for the many folks that have test anxiety. Maybe it's wise to try splashing cold water on your face and holding your breath for 30 seconds? Science! It's neat.
https://twitter.com/gaileyfrey/status/963842152303280129
(Click on the tweet to see the whole thread for the info)