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Alzheimer's disease is not a pleasant diagnosis at the best of times, and now research suggests some of the early markers of the disease could actually be linked to our own, repetitive negative thought patterns. 即使在最好的情况下，人们也不喜欢听到老年痴呆这个诊断结果，现在研究表明老年痴呆的一些早期症状其实和我们自己重复的消极思维模式有关。 The study looked specifically at 'repeat negative thinking', which isn't just the regular sad thoughts we all go through - it's defined as a cognitive process that encompasses our worrying and ruminating thoughts. 这项研究特别关注了“重复消极思维”，并不是指我们常有的悲伤的想法，它其实是一个认知过程，包括我们的担忧和反思。 What the team found was that these obsessive negative thought patterns were linked to an increase in cognitive decline and aggregation of amyloid beta proteins – a brain protein that's involved in Alzheimer's disease. 该团队的研究结果是，这些强迫性消极思维模式与认知能力下降程度增加以及淀粉样β蛋白的聚集有关，淀粉样β蛋白是大脑中与老年痴呆有关的蛋白。 It's important to note that this research is still in early stages, has quite a few caveats, and is observational. And correlation doesn't equal causation - there's no evidence here that ruminating negative thoughts are causing these early signs of Alzheimer's. | 
