The urge to check a phone requires the frontal lobe to inhibit the desire for distraction, leading to a form of multitasking.

“part of your frontal Lo is like no no no don't look at the phone don't look at the phone don't look at that big wheelbarrow of delicious interesting stuff stay on task and that's this kind of constant moment of multitasking where we're kind of yanking our brain back onto task”