On the one hand, regions of the brain associated with executive decision-making and goal-directed behaviors had shriveled, while, conversely, brain sectors linked to habit formation had bloomed.

• 一方面，与大脑执行决策制定和目标导向行为有关的区域萎缩，另一方面，与习惯形成有关的大脑的区域却增加了。