I recently listened to a podcast by Florence Williams called the 3 day effect. The idea is that spending at least 3 days in the wilderness without any technology can cause the brain to calm down, become more clear, and process things better. It's mostly used for healing from trauma, or to decompress from the stresses of life.
Unfortunately, a big part of it is the physical experience of hiking and caring for oneself in the wilderness. I was wondering if anyone had tried a modified, less physically demanding version of this to calm down the nervous system, and what was the result?