And there is the world itself, which requires us to do more left-brain thinking than right. Under these circumstances, our left brains become more and more developed while our right brains atrophy, metaphorically speaking, from under-use.
外在環境傾向於左腦思考，人們的左腦愈用愈發達，右腦在多重壓抑下少有機會使用，功能就日漸喪失了。