A new study projects that about a million Americans will develop dementia annually by 2060, nearly double the current rate. Researchers found a higher lifetime risk of dementia after age 55, with up to a 40% chance for those who live long enough. The study highlights the importance of midlife interventions like managing blood pressure and other health issues to reduce risk.
WASHINGTON — About a million Americans a year are expected to develop dementia by 2060, roughly double today’s toll, researchers reported Monday.
“All of our research suggests what you do in midlife really matters,” said Dr. Josef Coresh of NYU Langone Health, who coauthored the study in the journal Nature Medicine.Taking longer to recall a name or where you put your keys is typical with older age. But dementia isn’t a normal part of aging -- it’s a progressive loss of memory, language and other cognitive functions. Simply getting older is the biggest risk and the population is rapidly aging.
“It’s not a guarantee that someone will develop dementia,” cautioned Dr. James Galvin, a University of Miami Alzheimer’s specialist. He wasn’t involved with the new study but said the findings fit with other research.Prior studies estimated about 14% of men and 23% of women would develop some form of dementia during their lifetime. Coresh’s team analyzed more recent data from a U.S. study that has tracked the heart health and cognitive function of about 15,000 older adults for several decades.
But people can try to avert or at least delay health problems that contribute to later dementia. Coresh, for example, wears a helmet when biking because repeated or severe brain injuries from crashes or falls increase the risk of later-in-life dementia.
DEMENCIA RISK HEALTH AGING BRAIN
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