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September 21, 2020 is the 27th World Alzheimer's Day, that is, "World Dementia Day".
According to data from Alzheimer's Disease International, the disease affects 50 million people worldwide, with an average of new cases of dementia appearing every 3 seconds
The population of Alzheimer's has reached more than 8 million, with an average of 300,000 new cases each year, and the prevalence is increasing with age.
Alzheimer's disease (AD), also known as Alzheimer's, used to be considered mutually exclusive with depression
According to reports, the prevalence of depression in the elderly with AD is about 50%, which is much higher than the prevalence of the general elderly population (20%-25%)
Depression in later life increases the risk of dementia in the elderly by 1.
Early animal experiments have shown that noise is related to neuropathological changes that indicate AD and brain regions affected by AD
However, whether noise affects the risk of AD in the elderly, experts from Boston University School of Public Health in the United States launched a Chicago health and aging project, and the results were published in the magazine Alzheimer & Dementia
All participants ≥65 years of age received a three-year cognitive assessment
The relationship between community noise level and the prevalence of MCI and AD
Among these participants, the noise increased by 10 (dBA), the risk of MCI increased by 36% (OR=1.
Among these participants, the noise increased by 10 (dBA), the risk of MCI increased by 36% (OR=1.
Correlation between community noise level and MCI and AD and baseline cognitive performance through personal and neighborhood factors
In another survey from the Heinz-Nixdorf cohort, higher above-threshold noise exposure was also associated with a higher risk of MCI, to a degree almost the same as found in this study
At the same time, the exposure in the Heinz-Nixdorf cohort was truncated to 60 dB
Taken together, these results indicate that noise may affect the cognitive ability of the elderly and the risk of dementia
references:
Long-term community noise exposure in relation to dementia, cognition, and cognitive decline in older adults.
Long-term community noise exposure in relation to dementia, cognition, and cognitive decline in older adults.
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