阿茲海默症和其他癡呆症疾病，確實是令人畏懼的症狀。失去我們的思考能力這個概念是很難理解的。然而在我們說話的同時，幾百萬人已經開始失去自己最珍貴的記憶，甚至忘記怎麼做最簡單的事情，例如開車、吃飯或去上洗手間。
西班牙的研究人員發現，多達三分之一的癡呆症患者，早在真正發病前就有特定的症狀出現。這些症狀包括人格變化，他們會變得鬱悶、急躁，以及有不恰當的行為。另一種症狀則是對於複雜或需要多重步驟工作的完成能力降低。即使是他以前時常進行的工作或嗜好，也會變得困難。
另外，儘管視覺惡化和語言障礙經常好發於老年人身上，但倘若它發生於癡呆症患者身上時，這些症狀就會來得非常快速且頻繁。對於距離的判斷和深度的感知，視覺重組能力的差錯，和較弱的詞彙表達，都是癡呆症的跡象。
最後的一個徵兆是這個人會逐漸遠離社群。他們可能會注意到自己的行為，並為了避免尷尬而遠離人群，這或許是憂鬱症的一部分，但卻經常與癡呆症的發生有關。
(Health) Detecting Alzheimers Early
Alzheimers and other dementia diseases are certainly scary conditions to contend with. The very thought of losing, well, our thoughts, is very hard to grasp. Yet, as we speak, millions and millions of people are starting to lose their most cherished memories and even forgetting how to do simple things, such as drive, eat or go to the bathroom.
Researchers in Spain have discovered that as many as 1/3 of dementia patients have specific symptoms way before the actual signs of the disease kick in. These can include changes in someones personality, where they become more depressed, irritable, and acting inappropriate. Another is a lessened ability to complete complicated or multi-step tasks. Even jobs or hobbies once performed by someone regularly can become difficult.
And, while deteriorating vision and speech problems do come often with an aging individual, if its in someone developing dementia, these problems come on quickly and occur frequently. Judging distance and depth perception, as well as visual reorganization slip, and a weaker vocabulary are signs of dementia.
One of the final signs is a person becoming more withdrawn socially. They may notice their behavior and try to avoid embarrassment by avoiding other people, or it could be part of depression, which happens often with the development of dementia.
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