" There appears to be a dose-response pattern, ie, the higher the scores, the higher the risk of dementia, " Dr. Yonas Geda, a neuropsychiatrist at the Mayo Clinic in Rochester, Minnesota who led the study, said in a statement.

“这就像是剂量效应，也就是说，得分越高，患老年痴呆的风险越高。”美国明尼苏达州梅约医学中心的神经精神病学家约纳斯? 格达如是说道。