发病机制的研究涉及生物化学、分子生物学、血液异常的等方面，但其中心环节是高血糖和其引起组织缺血缺氧发生的一系列改变。
The research of the mechanism involves in biochemistry, molecular biology and blood dyscrasia, but it's center still is high blood sugar which causes a series changes of ischemia and hypoxia.
在邪恶中，异常事物的吸引创造出令人不安的焦虑：精神似乎已经变成了血液，像一股内在的力量搅动着肉体。
In vice, the attraction of the abnormal creates troubling anxiety: the spirit seems to have become blood and stirs in the flesh like an immanent force.
然而，最新的调查却表明，血液流动的变化也只是脑部活动异常的一个结果，并非构成偏头痛的起因。
However, more recent research shows that blood flow changes may be a consequence of unusual brain activity rather than the initial cause of the migraine.
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