Tonic labyrinthine reflex
The Tonic
The Ultimate Gin and Tonic Episode — Cocktail Chemistry
Gift Lab: How to Make DIY Tonic
Writing is sensual experiential grounding.
It also directly affects muscle tone due to the movement of the arms, legs, neck, and trunk.
I tasted the tonic, and to me, the single cup of sugar added with the citrus zest was plenty.