由 Ananya Mandal, MD 博士

老年癡呆是與腦子和其功能的拒绝的能力相關幾種症狀的組合。 可能有在認為,內存、認知、語言技能、瞭解和判斷的拒绝。

隨著時間的推移人們以老年癡呆惡化并且可能有問題控制他們的情感或工作情況。 他們在做出可能需要他們的系列、朋友或者照料者幫助決策。 他們可能最終變得無動於衷對他們的周圍。 老年癡呆的原因在對腦子的結構的故障在。


老年癡呆是一個公用情況。 在英國有居住以老年癡呆的 570,000 個人。 年長人口的在使用年限的上升和增量人數以老年癡呆預測在下三十年期間上升。

通常老年癡呆在是 65 或的人發生。 在這个下面 40s 很少診斷。 由年齡的 80 大約一个在五受影響,并且 1 在 3 個人在英國將有老年癡呆,當他們中斷的時候。 老年癡呆是輕微公用在婦女比人的。


老年癡呆可能是 100 個不同類型。 有些包括:

  • 老年癡呆症是小的叢蛋白質,叫作匾,開始在腦細胞附近的地方開發。 這可能隨著時間的推移導致內存嚴重損失。
  • 另一個類型是有在供血的問題對腦子的血管老年癡呆。 腦子不接受足够的氧氣。
  • 與 Lewy 機體的老年癡呆是小的異常結構,叫作 Lewy 機體,開發在腦子裡面老年癡呆的另一份表單。
  • Frontotemporal 老年癡呆說發生,當前面和顳葉 (腦子的二部分) 時啟動收縮。 這在單個可能發生在 65 歲以下。 它比老年癡呆的其他類型少見。



許多其他病症可能導致老年癡呆。 這些可能包括病毒感染例如 HIV、古茲菲德-克雅氏病、慢性大量酒精入口、亨廷頓疾病、累進 supranuclear 痲痺和正常壓腦水腫、多發性硬化症和運動神經元疾病。


沒有治療老年癡呆。 在多數患者症狀隨著時間的推移惡化。

覆核在 4月 Cashin-Garbutt 前, BA Hons (Cantab)


  1. http://www.nhs.uk/Conditions/Dementia/Pages/Introduction.aspx
  2. http://www.bbc.co.uk/health/emotional_health/mental_health/disorders_dementia.shtml
  3. http://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0001748/
  4. http://www.patient.co.uk/doctor/dementia


Last Updated: Sep 2, 2013


  1. Abrar Ahmad Abrar Ahmad Islamic Republic of Pakistan says:

    Let me briefly tell you that there are multiple forms of dementia - alzheimer’s disease being the most common one that accounts for 40 to 75% of dementia cases and is the sixth leading cause of death in United States. Additionally, dementia and its types have common signs with some variations. Let’s start with the most common signs of dementia most commonly seen in patients at the early stages of the disease. They start experiencing subtle memory loss, mood instability such as immediate occurrences of maniac (laugh) and depression (sadness) episodes, and have trouble with listening and explaining things to other people, communicational obstructions to be exact. They also segregate their selves from social gatherings and unions, face difficulty in performing daily chores and also experience muscle impairment. Additionally, some people fail to converse with other people because they fail to keep up the pace and comparatively take longer to process the coming words and repeat the same question over and over again. Most of the cases showed that, dementia patients start segregating their selves and start living alone because they could not keep up with the lives of normal people. They just are not up for the adaptation to change. In one of the form of dementia, which is Lewy Body dementia, probable signs appear to be sleeplessness. Patients experience insomnia which leads to mood swings. It has been seen that they fail to keep tracks of roads and lose their tracking skills as well. In case of Alzheimer’s, a patient the most common signs are memory loss and forgetfulness. In some cases, it has been observed that people with Alzheimer’s segregate their selves from others. Additionally, they experience complete memory loss and trouble understanding visual images and spatial relationships, lack the judgement skill and a complete withdrawal from work or social activities. One most commonly observed is the forgetfulness and inability to retrace steps. There is another type of dementia called Parkinson’s characterized as uncontrollable movement of body parts such a shaking limbs and fingers. It has been observed that patients experience writing and speech changes, their ability to respond fails badly and they lose posture and balance. One of the common sign is bradykinesia characterized as slow body movement. One thing to keep in mind before labelling someone as a dementia patient is that forgetfulness and memory loss do no really mean a person has dementia because memory loss and forgetfulness are a normal parts of aging. But if any severity has been observed in these signs, a patient definitely requires a professional advice and consultation. There is no cookie approach to cure dementia but if you observe such changings or signs in your loved ones do not take it for granted before it gets too late.
    Reference: http://bit.ly/2e5hYgU

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