Digital dementia refers to impaired memory and cognitive functioning due to the extended use of digital devices. 

“数码痴呆”指的是由于过度使用数码设备导致记忆力和认知能力受损。

Digital dementia is when people rely on digital devices like personal computers or cellular phones to the extent that they cannot even recall their own phone numbers. 

有时候人们依赖个人电脑或电话等数码设备，都到了想不起自己的电话号码是多少的地步，这就是数码痴呆。