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Stress in middle age can make your brain shrink and make your memory worse, scientists have discovered. 科学家发现，中年压力会让人的大脑萎缩且记忆力变差。 The brain-reducing effects of stress were found to be triggered by cortisol. 压力令大脑萎缩这一影响被发现是由皮质醇引发的。 The high levels of the stress hormone may be an early warning sign someone may end up with dementia, the research suggests. 研究表明，这种压力荷尔蒙的水平高可能是一个早期预警信号，表明某人可能最终会患上痴呆症。 | 
