Can Alzheimer’s Be Detected Early, and Can You Reduce Your Risk?
September 21 is Alzheimer's Day, so we wanted to share some preventative steps you can take to try and prevent risks associated with Alzheimer's disease.
What if the earliest signs of Alzheimer’s disease could be identified before significant memory loss occurs?
For decades, Alzheimer’s disease was often diagnosed only after noticeable changes in memory, thinking, or daily functioning. Today, advances in brain imaging, cognitive testing, and biomarkers are changing how physicians investigate the disease.
At the same time, research is revealing something equally important: while there is currently no guaranteed way to prevent Alzheimer’s disease, many of the factors associated with dementia risk can be modified.
In fact, the World Health Organization's updated 2026 dementia-prevention guidance reports that up to 45% of dementia risk may be associated with potentially modifiable factors. That makes protecting your brain health something worth thinking about long before symptoms begin.
How Can Alzheimer’s Disease Be Detected?
Alzheimer’s is associated with abnormal changes in the brain, particularly the accumulation of beta-amyloid plaques and tau proteins. These biological changes may begin years before dementia becomes apparent. There is no single test that should be used by itself to diagnose Alzheimer's.
A comprehensive evaluation may combine several approaches including:
Cognitive and Memory Testing
Blood Tests and Alzheimer’s Biomarkers
MRI and Brain Imaging
Cerebrospinal Fluid Testing
Can Alzheimer's Disease Be Prevented?
There is currently no strategy that guarantees someone will never develop Alzheimer's disease. Age and genetics remain important risk factors that we cannot change.
But that doesn't mean brain health is entirely outside our control.
Research increasingly suggests that protecting cardiovascular health, treating sensory loss and maintaining healthy behaviours throughout life may reduce the likelihood of cognitive decline and dementia.
Protect Your Cardiovascular Health
That means routinely monitoring and appropriately managing:
Blood pressure
Cholesterol
Blood glucose and diabetes risk
Body weight and body composition
Cardiovascular disease
Exercise Regularly:
Aerobic activity
Strength training
Regular daily movement
Protect your hearing:
In the NIH-funded ACHIEVE randomized trial involving 977 adults aged 70–84, hearing intervention did not significantly reduce cognitive decline across the entire study population. However, among participants who were already at increased risk of cognitive decline, treatment of hearing loss was associated with an almost 50% slower rate of cognitive decline over three years.
Protect your vision
Stop smoking and limit harmful alcohol use
Stay socially and mentally active
Protect your brain from injury
Try Genetic Testing for Brain Health
Brain Health Is a Long-Term Investment
The most important shift in Alzheimer's medicine may be moving from:
“Do I have dementia?”
to:
“What can I do today to protect my brain for the next 10, 20 or 30 years?”
Modern preventive medicine allows physicians to look at brain health alongside cardiovascular health, metabolic health, hearing, vision, physical fitness and other risk factors.
And when concerning memory changes do appear, newer diagnostic tools—including advanced imaging and blood biomarkers—are making it increasingly possible to investigate Alzheimer's disease earlier and more accurately.
You cannot change your age or your genetics. But there are many aspects of your health that you can measure, monitor and improve.
At Georgia Healthcare, our approach to preventive healthcare focuses on identifying health risks early and creating a personalized plan designed to support healthier aging.
Your brain health deserves attention
before there is a problem
If you are concerned about memory changes, cognitive health, or long-term risk factors, speak with our medical director to see whether a preventive health assessment is right for you.
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