With practice of an activity or skill, your synaptic density increases, and what was once novel and complex can easily become rote and passive.
随着对一项活动或技能的练习，你的突触密度增大，曾经是新奇而复杂的东西可以很容易变得机械而死板。
2
The human brain is an unfeasibly complex organ, crammed with billions of neurons and capable of performing trillions of different synaptic functions.
人类的大脑是难解的复杂器官，里面塞满了数以十亿计的神经细胞，能进行百亿种不同的神经元联合功能。
3
Problems with other proteins in the complex also lead to synaptic overgrowth in fruit flies and, o 'connor-giles predicts, may contribute to developmental disabilities in humans as well.