The study further found a 22% prevalence of mild cognitive impairment (MCI) of those 65 and older, defined as early stage memory loss in between normal aging and dementia.

The research, published in the Journal of the American Medical Association (JAMA) Neurology today, analyzed the ubiquity of dementia by age, sex, race, ethnicity, and education of nearly 3,500 people 65 and over between June 2016 and October 2017. It examined cognitive assessments that tested for abilities such as memory, comprehension, and object naming, along with an in-person interview to determine whether the participants had dementia or MCI compared to a normative sample. 

Dementia is generally under-recognized and under-diagnosed, especially among people who have less access to healthcare, Dr. Jennifer J. Manly, author of the study and professor of neuropsychology in neurology at the Gertrude H. Sergievsky Center and the Taub Institute for research in aging and Alzheimers disease at Columbia University, tells Fortune. 

While getting older increases the risk for having dementia, it is not a normal part of aging, according to the U.S. Centers for Disease Control and Prevention (CDC). Rather, its a debilitating experience that can make it difficult to think, remember, reason, and speak. Alzheimers causes between 60% and 80% of cases of dementia, making it the most common trigger of the disease. This new studys findings mirror previous studies testing the prevalence of dementia in the overall population. 

But past research on how common dementia is largely focused on college-educated people who are racialized as white, Manly says in a press release. This study is representative of the population of older adults and includes groups that have been historically excluded from dementia research but are at higher risk of developing cognitive impairment because of structural racism and income inequality. If were interested in increasing brain health equity in later life, we need to know where we stand now and where to direct our resources. 

It found that Black adults dementia odds were 81% higher than that of non-Hispanic white adults, and 15% of those who identify as Black developed dementia compared to 11% of those who identify as white. Hispanic adults had 42% higher odds of MCI compared to non-Hispanic white adults, and 28% who identify as Hispanic developed MCI compared to 23% of those who identify as white. 

Dementia risk also decreased with each individual year of education attained among all adults, and Manly says this data can set a marker for improvement in the future.

Dementia research is historically white

Education, early detection, and prevention in the groups where dementia is most prevalent starts with a diverse sample of research, Dr. Manisha Parulekar, co-director of the Center for Memory Loss and Brain Health and director of the division of geriatrics at Hackensack University Medical Center, tells Fortune.

 A lot of these studies consent forms are in English, and if youre not English-speaking youre automatically excluded, she says, adding that inclusive research leads to increased awareness on symptoms, medications, and lifestyle changes that can help slow the progressionsomething she is working on getting out to communities who have been widely left out of studies. 

In a July interview with the University of Wisconsins Alzheimers Disease Research Center, Dr. Carl Hill, chief diversity, equity, and inclusion officer at the Alzheimers Association, underscores the importance of understanding the diversity among dementia and the risk factors (like high blood pressure, depression, and diabetes) that can disproportionately affect people throughout their lives.

In some people, there is a genetic risk. In others, weve got to understand the life course perspective and that is the cumulative effects of stress over the life course, how that relates to coping behaviors that threatens their cardiovascular health, he said, adding that can increase the risk for dementia.

The JAMA study also found that the prevalence of dementia grew substantially as people age, with 35% of those aged 90 and over afflicted with it. As the 65 and over cohort continues to grow, researchers point to the urgency in understanding the syndrome that unequally affects communities who havent been at the center of the research. 

We have a stratification of privilege that is reflected in our health, and weve seen that in COVID, and I think that we were seeing that in dementia and in cognitive impairment, Manly says.  We have an obligation to really try to serve all of the experiences that people have, and that includes where they live, and who cares for them, and we need to advocate for that type of thing.

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News of the fallout, which was announced Monday, makes CAA the latest in a string of businesses and projects to distance themselves from the musician who now goes by Ye, following his anti-Semitic comments.

On the same day that the talent agency cut ties with the rapper, studio executives announced that a completed documentary about the rapper has been shelved.

MRC studio executives Modi Wiczyk, Asif Satchu and Scott Tenley announced in a memo Monday: We cannot support any content that amplifies his platform.

Kanye is a producer and sampler of music. Last week he sampled and remixed a classic tune that has charted for over 3000 years the lie that Jews are evil and conspire to control the world for their own gain, Wiczyk, Satchu and Tenley wrote in a memo announcing that the documentary would be shelved. This song was performed acapella in the time of the Pharaohs, Babylon and Rome, went acoustic with The Spanish Inquisition and Russias Pale of Settlement, and Hitler took the song electric. Kanye has now helped mainstream it in the modern era.

The production company founded by LeBron James announced earlier this month that it would not air episodes of its show The Shop featuring Kanye West, because he doubled down on his antisemetic remarks.

And French fashion house Balenciaga cut ties with Ye, = Womens Wear Daily reported last week.

Adidas, however, has stayed silent so far. The rapper has gone so far as to openly say that the company will do nothing in response to his recent comments.

I can say anti-Semitic things, and Adidas cant drop me. Now what? Now what? Kanye says in a short video clip from the Oct. 16 episode of Drink Champs, a hip-hop podcast. The clip has since been taken down. Adidas did say earlier this month, though, that it would review its business with the rapper

Ye was recently restricted from posting on Twitter and Instagram over anti-Semitic posts that the social networks said violated their policies. He has also suggested slavery was a choice and called the COVID-19 vaccine the mark of the beast. Earlier this month, Ye was criticized for wearing a White Lives Matter T-shirt to the showing of his latest collection at Paris Fashion Week.

Others in Hollywood, including Yes estranged wife, Kim Kardashian, and other members of her family, have also condemned anti-Semitism.

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