Infographic: Understanding Different Types of Dementia
Dementia is an umbrella term used to describe a range of neurological conditions affecting the brain that get worse over time.
痴呆症是一个总称，用于描述一系列影响大脑的神经系统疾病，这些疾病会随着时间的推移而恶化。
To share the image, right-click on it and select "save image as" to save the file to your computer.
要共享图像，请右键单击该图像并选择“图像另存为”将文件保存到您的计算机。
We encourage you to use the hashtag #NIAHealth in your social media posts to connect with people and organizations with similar goals.
我们鼓励您在社交媒体帖子中使用主题标签#NIAHealth 与具有相似目标的人和组织建立联系。
As we age, it’s normal to lose some neurons in the brain.
随着年龄的增长，大脑中失去一些神经元是正常的。
People living with dementia, however, experience far greater loss.
然而，痴呆症患者所遭受的损失要大得多。
Many neurons stop working, lose connections with other brain cells, and eventually die.
许多神经元停止工作，失去与其他脑细胞的联系，并最终死亡。
At first, symptoms can be mild, but they get worse over time.
起初，症状可能很轻微，但随着时间的推移，症状会变得更严重。
Read on to learn more about four different types of dementia.
继续阅读以了解有关四种不同类型痴呆症的更多信息。
[Note: Below is a chart of four columns and five rows that describes what’s happening in the brain, the symptoms, the typical age of diagnosis, diagnosis, and treatment of four types of dementia.]
[注：下面是一张四列五行的图表，描述了四种类型痴呆症的大脑发生的情况、症状、典型诊断年龄、诊断和治疗。]
Alzheimer’s Disease, Frontotemporal Dementia, Lewy Body Dementia, and Vascular Dementia
阿尔茨海默病、额颞叶痴呆、路易体痴呆和血管性痴呆
Alzheimer’s disease : Abnormal deposits of proteins form amyloid plaques and tau tangles throughout the brain.
阿尔茨海默病：蛋白质异常沉积在整个大脑中形成淀粉样斑块和 tau 蛋白缠结。
Frontotemporal dementia : Abnormal amounts or forms of tau and TDP-43 proteins accumulate inside neurons in the frontal and temporal lobes.
额颞叶痴呆：tau 蛋白和 TDP-43 蛋白在额叶和颞叶神经元内积聚异常数量或形式。
Lewy body dementia : Abnormal deposits of the alpha-synuclein protein, called “Lewy bodies,” affect the brain’s chemical messengers.
路易体痴呆：α-突触核蛋白（称为“路易体”）的异常沉积会影响大脑的化学信使。
Vascular dementia : Conditions, such as blood clots, disrupt blood flow in the brain.
血管性痴呆：血栓等病症会扰乱大脑的血流。
Note that these changes are just one piece of a complex puzzle that scientists are studying to understand the underlying causes of these forms of dementia and others.
请注意，这些变化只是科学家们正在研究的复杂难题的一小部分，以了解这些形式的痴呆症和其他痴呆症的根本原因。
There are several types of frontotemporal disorders, and symptoms can vary by type.
额颞叶疾病有多种类型，不同类型的症状也不同。
Alzheimer’s disease : Mid-60s and above, with some cases in mid-30s to 60s
阿尔茨海默病：60多岁以上，部分病例为30多岁至60多岁
Frontotemporal dementia : Between 45 and 64
额颞叶痴呆：45 岁至 64 岁之间
Symptoms can be similar among different types of dementia, and some people have more than one form of dementia, which can make an accurate diagnosis difficult.
不同类型的痴呆症的症状可能相似，并且有些人患有不止一种形式的痴呆症，这使得准确诊断变得困难。
Symptoms can also vary from person to person.
症状也可能因人而异。
Doctors may ask for a medical history, complete a physical exam, and order neurological and laboratory tests to help diagnose dementia.
医生可能会询问病史、完成体检并进行神经学和实验室检查以帮助诊断痴呆症。
There is currently no cure for these types of dementia, but some treatments are available.
目前尚无法治愈这些类型的痴呆症，但可以进行一些治疗。
Speak with your doctor to find out what might work best for you.
与您的医生交谈，找出最适合您的方法。
Living with dementia can be challenging, but there are ways to manage it.
与痴呆症一起生活可能具有挑战性，但有一些方法可以控制它。
Learn more about the types of dementia and other conditions that can cause dementia .
了解有关痴呆症类型和其他可能导致痴呆症的疾病的更多信息。