Constant Anxiety - The Modern Disorder

I recently read about a new disorder in which modern office workers become so used to multi-tasking that they can never feel calm. They can never relax. They feel like frauds because their work is so intangible. There is always a feeling that they should be doing something else, something additional. The only place they feel calm is while in the car in transit between point A and B.
I don't remember what they were calling this, but I found it interesting.