https://www.washingtonpost.com/national/health-science/now-more-of-us-can-count-on-more-time-dodging-the-dementia-bullet/2018/05/24/f9f014f8-5f32-11e8-b656-236c6214ef01_story.html?noredirect=on&utm_term=.39666d19e734
You’ve turned 65 and exited middle age. What are the chances you’ll develop cognitive impairment or dementia in the years ahead?
New research about “cognitive life expectancy” — how long older adults live with good versus declining brain health — shows that after age 65 men and women spend more than a dozen years in good cognitive health, on average. And, over the past decade, that time span has been expanding.
By contrast, cognitive challenges arise in a more compressed time frame in later life, with mild cognitive impairment (problems with memory, decision-making or thinking skills) lasting about four years, on average, and dementia (Alzheimer’s disease or other related conditions) occurring over 1½ to two years.
Even when these conditions surface, many seniors retain an overall sense of well-being, according to new research presented last month at the Population Association of America’s annual meeting.
“The majority of cognitively impaired years are happy ones, not unhappy ones,” said Anthony Bardo, a co-author of that study and assistant professor of sociology at the University of Kentucky-Lexington.
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