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The postpartum blues, maternity blues, or baby blues is a transient condition that 75-80% of mothers could experience shortly after childbirth with a wide variety of symptoms which generally involve mood lability, tearfulness, and some mild anxiety and depressive symptoms. Baby blues is not postpartum depression, unless it is abnormally severe. ==Causes== After the placenta is delivered, the placental "hormone factory" shuts down causing radical changes in hormone levels, and the woman can suffer symptoms due to withdrawal from the high pregnancy levels of oestrogen, progesterone and endorphins. Combined with this shift in hormone levels is the physical, mental and emotional exhaustion - as well as sleep deprivation typical of parenting a newborn. All of these factors contribute to the condition. It can also be normal for the ovaries (having been virtually inactive for the last six months of the pregnancy) to take a number of weeks to return to producing normal pre-pregnancy hormone levels. This condition may also be associated with thyroid dysfunction. An association with serotonin has been suggested. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Maternity blues」の詳細全文を読む スポンサード リンク
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