原因似乎係 ， 喺個腦裡面 重要嘅神經同重要嘅突觸會相互連結 變得更加強大 而無咁緊要嘅神經同突觸 趨向消失 、 式微
The reason seems to be that the important nerves and important synapses in the brain are interconnected and become more powerful, while the less important nerves and synapses tend to disappear and decline