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When Do Our Brains Get Old?

When Do Our Brains Get Old?

Baycrest Reveals New Research on Brain Aging

After gradually declining throughout our adult lives, cognitive performance shifts to a more rapid decline in our early sixties, reveals a new Baycrest study. The results of this study, published in the Journals of Gerontology, will help researchers and clinicians better understand normal cognitive decline, allowing them to catch abnormal changes in cognition earlier and ultimately helping to protect older adults’ brain health as they age.

Brain Research Insights from 40,000 People

“We know that older adults tend to perform worse on cognitive tests than younger adults do, but studies typically assess age-related changes in cognition by comparing groups of older participants to groups of younger participants, often leaving out the period of midlife. Our study is one of the first to look at the continuous cognitive changes across age, and specifically when the shift to older adulthood occurs,” says Dr. Annalise LaPlume, postdoctoral fellow at Baycrest’s Rotman Research Institute (RRI) and lead author of this study. In the study, the researchers looked at data from 40,000 people aged 18 to 90 who completed the Cogniciti Brain Health Assessment, developed by Baycrest. Participants took the test in their own homes by going to the Cogniciti website (https://cogniciti.com/). The test takes around 20 minutes to complete and consists of a background questionnaire and four cognitive tasks. The background questionnaire includes details of participants’ age, sex, level of education and specific health conditions that may affect cognition, such as high cholesterol, Alzheimer's disease, anxiety, insomnia or other sleep disorders, diabetes and stroke.

We Have to Look After Our Brains as We Age

“The Cogniciti Brain Health Assessment is a powerful tool for rapid and reliable cognitive screening, says Dr. LaPlume. “It was specifically designed for older adults and includes tasks sensitive to changes in the brain associated with aging and age-related cognitive disorders.”
The study revealed two distinct periods of cognitive performance: a gradual decline from the age of 18 until the early sixties, followed by more rapid decline until age 90. The researchers also found increased individual differences between people’s cognitive performance starting in the early sixties, suggesting the importance of factors besides age. “There are many things we can do to maintain our brain health and decrease our chances of developing mild cognitive impairment or dementia. These include eating a heart-healthy diet, exercising on a regular basis, managing our stress, sleeping well and staying socially engaged,” says Dr. Nicole Anderson, senior scientist at Baycrest’s Rotman Research Institute (RRI), associate scientific director of Baycrest’s Kimel Family Centre for Brain Health and Wellness and senior author of this study. This research was supported by the Natural Sciences and Engineering Council of Canada (NSERC) and the Alzheimer Society of Canada.

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Source:

https://www.baycrest.org/Baycrest-Pages/News-Media/News/Research/For-our-brains,-older-adulthood-may-begin-in-our-e

PUBLISHED : 7 months ago

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