Brain science suggests "mind wandering" can help manage anxiety
Some helpful insights for the stressful and frightening days ahead of us...
When we think of anxiety disorders, we generally think of them as uncomfortable emotional responses to threat. These responses may include symptoms such as palpitations, shortness of breath, sweating, trembling, or absolute paralysis. While there is nothing inherently wrong in thinking about anxiety this way, a recent study pointed out that there is an entirely different way of thinking about anxiety that may be even more helpful. According to psychologist Kalina Christoff and her colleagues, anxiety may be more appropriately thought of as mind-wandering gone awry.
The advantages of mind-wandering
In your brain, there are circuits that promote mind-wandering and they are not all bad. In fact, these very circuits help you maintain a sense of self, understand what others are thinking more accurately, become more creative, and even predict the future. Without your mind-wandering circuits, your brains ability to focus would become depleted, and you would be disconnected from yourself and others too.
In addition to the natural and frequent tendency for your mind to stray, it also has automatic constraints too, to ensure that it does not stray too far. When daydreaming during a boring lecture, for example, your brain may jerk you back into reality.
https://www.health.harvard.edu/blog/a-different-way-to-manage-anxiety-evidence-from-brain-science-2016111710659