Severe mental disorders, for them, are the result of being possessed by spirits - entirely not in the domain of men of medicine but in that of mystic healers.
严重的精神错乱对于他们来说是被鬼神附体的结果，不是人力和医药能解除的，要靠神力医治。
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In a recent study for the Archives of Internal Medicine, scientists followed 153 men and women for two weeks, keeping track of their quality and duration of sleep.