Milk brain can refer to feelings of disorientation and mental sluggishness reported by some mothers of newborn babies or total involvement in the care of a newborn baby, to the exclusion of almost everything else.
“牛奶大脑”可以指新生儿母亲表现出的情绪错乱和大脑反应迟钝的状态，也可以指这些妈妈们全身心投入到孩子的身上，其他事物一概不予理会的情况。
It's a casual, common slur. Even women use it to describe how disorganized they feel in the first frantic days after giving birth. Yet milk brain is just a temporary effect, brought on by sleep deprivation, plus the need to learn (or relearn) the details of child care.
其实这是一种普遍的误读。就算有女性用“牛奶大脑”这个词来形容自己产后几天慌乱无序的状态，但这也只是一个暂时现象，多数是因为睡眠不足，以及需要花时间学习育婴知识等因素导致的。
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