Moderate to vigorous exercise and daily walks can reduce the risk of developing dementia among senior women, according to a study by UC San Diego researchers published Wednesday.
"Given that the onset of dementia begins 20 years or more before symptoms show, the early intervention for delaying or preventing cognitive decline and dementia among older adults is essential," said senior author Andrea LaCroix, distinguished professor at the Wertheim School.Sign up for NBC San Diego newsletters.
According to the U.S. Department of Health and Human Services, dementia affects more than five million people in this country, with that number expected to double by 2050. "Physical activity has been identified as one of the three most promising ways to reduce risk of dementia and Alzheimer's disease. Prevention is important because once dementia is diagnosed, it is very difficult to slow or reverse. There is no cure," LaCroix said.
For Wednesday's published study, researchers sampled data from 1,277 women. The women wore research-grade accelerometers and went about their daily activities for up to seven days to obtain accurate measures of physical activity and sitting.
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