translation.en: Has their voice gotten more quiet? We're doing a lot of work with people with Alzheimer's and particularly with Parkinson's, where that quiet voice that sometimes shows up with Parkinson's patients may be the best early indicator of Parkinson's five to 10 years before it shows up clinically.
translation.zh: 还是声音变的轻了呢？我们研究了很多 患有阿尔茨海默氏症，特别是帕金森症的病人， 轻声可能是最好的 发现前期帕金森症的征兆， 比临床显现的要早5年到10年。