一项对超过14000名成年人进行了25年跟踪调查的研究发现，仅仅一次导致意识丧失的头部损伤就可能增加一个人晚年患痴呆症的几率——这种风险随着受伤次数的增加而增加。
根据周二发表在《Alzheimer’s & Dementia: The Journal of the Alzheimer’s Association》上的研究，研究结果还显示，女性头部损伤与痴呆症风险之间的关联性比男性强，白人比黑人强。

Just one head injury could raise risks of developing dementia years later, study says

One head injury could raise risks of developing dementia ...

https://www.miamiherald.com/news/nation-world/national/article249896658.html

Head injury 25 years later: Study finds increased risk of ...

https://medicalxpress.com/news/2021-03-injury-years-dementia.html