Red brain / Green brain
In the book "Mindfulness on the run" (2016), the author Dr Chantal Hofstee notes that the way our thoughts and emotions interact is complex. And yet, the 'bottom line' of all the discussions about layers of the conscious and sub-conscious is simple: "your brain feels safe or unsafe" (page 13). She calls the safe brain state 'green' and the unsafe brain state 'red'.
http://themindfulmigraine.blog/2026/03/18/red-brain-green-brain/
