you start thinking about something other than what you're doing
your mind wanders
the ability to concentrate on something
focus
to become aware of or start to notice a particular thing
to become conscious of something
having many or different types
multiple
grateful and glad about something
thankful
to move your attention from one thing to another
to shift your attention from/to something
the rate at which a person produces useful work
productivity
working in a way that wastes time, money or other resources
inefficient
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