"It's a bit like solving a jigsaw puzzle without knowing what the result needs to look like", says Pierre Tariot, director of the Banner Alzheimer's Institute in Phoenix, Arizona.
World Alzheimer's Day, on 21 September, is a focal point for charities and research organisations to raise awareness of all forms of dementia, as well as Alzheimer's.
It's a devastating disease driving a dementia epidemic ruining tens of millions of lives, but with no new medical treatment since the turn of the century, the fight against Alzheimer's is foundering. Overall, the burden of Alzheimer's on the population is expected to grow by 13.9 million between now and the year 2060 to 417 million.
The number of Americans living with Alzheimer's disease and related dementias is set to double by the year 2060.
On Wednesday, a team of scientists in the USA said they had eliminated dead but toxic cells occurring naturally in the brains of mice created to mimic Alzheimer's and slowed neuron damage and memory loss associated with the disease.
Almost 14 percent of black men and women had developed the disease by 2014, where as 12.2 percent of Hispanics had it, as did 10.3 percent of white Americans.
Dementia is over 40 percent more common in women. Hispanic Americans are the group expected to see the largest jump in the next few decades given the trends in their population growth.
In the meantime, the Alzheimer's Association estimates that the best way to save $7.9 trillion in expenses for treating and caring for dementia patients is to improve diagnoses and make sure they happen as early as possible.
The study shows African Americans have the highest prevalence of ADRD at 13.8 percent, followed by Hispanics (12.2 percent), non-Hispanic whites (10.3), American Indian and Alaskan Natives (9.1), and Asian and Pacific Islanders (8.4).
That's because there's still no cure for the brain disease that affects millions of people worldwide, but researchers hope we're getting closer.
"It is important for people who think their daily lives are impacted by memory loss to discuss these concerns with a health care provider", said Kevin Matthews, a CDC health geographer who led the study team.
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