The longer we live, the more likely we are to develop dementia. Of all the myriad conditions that accompany old age, it is the one that tends to terrify us most. One in six people over 80 have the condition, with impaired cognitive function (usually memory loss) and at least one other significant problem with language, spatial awareness or function. Treatments exist, but they often have little or no effect and, despite reports last week that US researchers have found a possible cause, there is still no cure.
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