Whereas there is not any check you’ll be able to take at residence to definitively say how “previous” or “younger” your mind is, we are able to consider a younger and wholesome mind as being at peak perform. And, most frequently, peak mind perform is related to a sharp reminiscence. As we grow old, it may be troublesome to recollect names, faces, occasions, one thing we simply learn, or what we ate.
In youthful brains, the method known as neural differentiation is environment friendly and sturdy. On this course of, particular mind cells are tasked to recollect sure sorts of data, corresponding to faces. As we age, that course of deteriorates, so the cells lose their specificity and don’t perform as properly. As a substitute of simply specializing in faces, they attempt to bear in mind different sorts of data as properly. For a SuperAger, neural differentiation is akin to that of a twenty-five-year-old. That is a part of the rationale why a SuperAger has the reminiscence efficiency of a twenty-five-year-old.
So what else are the secrets and techniques of those SuperAgers with sturdy reminiscence—and all these with mind ages youthful than their chronological age? A research revealed in 2021 uncovered some shocking solutions. Over eighteen months, the research adopted 330 individuals, known as SuperAgers, who have been 100 years or older; the researchers discovered no decline in most areas of reminiscence or cognitive skills2.
Whereas a yr and a half won’t sound like a very long time, as soon as an individual reaches the century mark, two years for them is like twenty-five years for a seventy-five-year-old when it comes to mind well being. For instance, the danger for creating dementia3 will increase by 60 % each two years after the age of 100, whereas it takes twenty-five years for a 75-year-old’s danger of dementia to extend by the identical quantity. In different phrases, twenty-five years of danger is compressed into two years after the age of 100.