A study published in Nature Medicine indicates that the risk of developing dementia is higher than previously thought, with estimates showing that about 42% of both men and women may develop dementia in their lifetime. The study, which followed over 15,000 people in the US for more than two decades, found that the risk of dementia increases with age, especially after the age of 85. Black Americans and women have higher risks compared to the average population.
Factors contributing to the increased risk of dementia include the aging population, disparities in healthcare access causing higher rates of diabetes and hypertension in Black Americans, genetics, and lifestyle factors. The study also highlighted the importance of including diverse participants in research studies to accurately assess dementia risk across various populations.
While dementia, particularly Alzheimer’s disease, is a prevalent issue affecting older adults, not everyone will develop dementia in old age. Lifestyle modifications such as managing hypertension, diabetes, and maintaining overall health through proper diet, sleep, and exercise can help lower dementia risk. The study’s findings underscore the importance of promoting brain health and addressing risk factors to reduce the incidence of dementia in the aging population.
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