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Baycrest study reveals whether you're 18 or 80, lifestyle may be more important than age
Overview
Individuals with no dementia risk factors, such as smoking, diabetes or hearing loss, have similar brain health as people who are 10 to 20 years younger than them, according to a new Baycrest study. The study found that a single dementia risk factor could reduce cognition by the equivalent of up to three years of aging.
The study, published today in the journal Alzheimer's & Dementia: Diagnosis, Assessment, and Disease Monitoring, a journal of the Alzheimer's Association, included data from 22,117 people aged 18 to 89 who completed the Cogniciti Brain Health Assessment, developed by Baycrest. Participants took the test in their own homes by going to the Cogniciti website. The test takes around 20 minutes to complete and consists of a background questionnaire and four cognitive tasks.
The researchers looked at participants' performance on memory and attention tests, and how this was impacted by eight modifiable risk factors for dementia: low education (less than a high school diploma), hearing loss, traumatic brain injury, alcohol or substance abuse, hypertension, smoking (currently or in the past four years), diabetes and depression.
Each factor led to a decrease in cognitive performance by as much as three years of aging, with each additional factor contributing the same amount of decline. For example, having three risk factors could lead to a decrease in cognitive performance equivalent to as much as nine years of aging. The effects of the risk factors increased with age, as did the number of risk factors people had.
Researchers said all in all, our research shows that you have the power to decrease your risk of cognitive decline and dementia, Start addressing any risk factors you have now, whether you're 18 or 90, and you'll support your brain health to help yourself age fearlessly.
Reference: "Baycrest study reveals whether you're 18 or 80, lifestyle may be more important than age in determining dementia risk"; BAYCREST CENTRE FOR GERIATRIC CARE; JOURNAL-Alzheimer s & Dementia Diagnosis Assessment & Disease Monitoring. DOI:10.1002/dad2.12337.
Speakers
Isra Zaman
B.Sc Life Sciences, M.Sc Biotechnology, B.Ed