From ADHD 2.0 Hallowell & Ratey:
“The reason so many people are starting to look and act distracted, as if they all have ADHD or VAST (Variable Attention Stimulus Traits), is that fewer and fewer people are spending time in the task-positive network. They are not spending enough time focusing on a single task, certainly not long enough to dig a deep enough hole or write an email longer than a sentence or two or do more than look at an egg, let alone fry one. Unfortunately, the TPN (Task Positive Network) is akin to a muscle that atrophies when not used. So as we mentally flit around, the TPN weakens and our attention span shortens.”
