Nearly two-thirds of Alzheimer’s disease patients are women, a disparity that researchers have long sought to explain. A new study published in Alzheimer’s Research & Therapy analyzes data from more than 17,000 adults aged 40 and older to investigate whether common dementia risk factors have a sex-specific impact. The study compared the prevalence and cognitive effects of 13 modifiable risk factors between men and women, according to the report. Researchers used data from the Health and Retirement Study, a nationally representative U.S. cohort, and examined factors including depression, sleep quality, cholesterol, diabetes, hearing loss, and hypertension. The analysis suggests that risk factors are not sex-neutral and that women may experience stronger cognitive harm from several conditions.
Prevalence Differences by Sex
According to the study, women had higher rates of elevated cholesterol, depression, physical inactivity, smoking, poor sleep, poor vision, and lower educational attainment. Men had higher rates of diabetes, hearing loss, and heavy alcohol use. However, officials said prevalence alone did not explain the full picture of cognitive decline risk. The book “The XX Brain” by Lisa Mosconi notes that women approach midlife with a critical window of opportunity to detect signs of higher risk and intercede with strategies to reduce or prevent that risk [1]. Research cited in a report from NaturalNews.com also indicates that omega-3 fatty acids may help counteract cardiovascular changes during perimenopause, which could be relevant for brain health [2]. The study’s authors emphasized that the distribution of risk factors between sexes is only part of the story, and that biological vulnerability must be examined.
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