Memory changes, menopause brain fog, a family history of dementia, and concerns about Alzheimer’s or Parkinson’s can make brain health feel overwhelming. The most useful starting point is to focus on the factors we can identify, measure, and improve long before cognitive symptoms become disabling. Dr. Kellyann Niotis joins Dr. Thais Aliabadi and Mary Alice Haney to discuss treatment for lifelong brain health.
In this interview, we explore practical brain disease prevention strategies for women, including the role of menopause, cardiovascular health, exercise, sleep, nutrition, APOE4 genetics, MRI white matter changes, and emerging blood biomarker testing.
Table of Contents
- Understanding Preventive Neurology
- Normal Aging vs. Cognitive Decline
- Why Menopause Matters for Women’s Brain Health
- The Core Brain Health Prevention Plan
- Sleep, Anxiety, Alcohol, and Medication Effects
- Blood Pressure, Blood Sugar, Cholesterol, and MRI White Spots
- APOE4: Important Information, Not a Destiny
- Foods and Supplements for Brain Health
- Biomarker Testing for Alzheimer’s Disease
- What to Do This Month for Better Brain Health
Understanding Preventive Neurology
What is preventive neurology?
Preventive neurology focuses on reducing a person’s risk of neurodegenerative disease before significant symptoms appear. Rather than waiting until a person has dementia, Parkinson’s disease, Lewy body dementia, or substantial cognitive impairment, we assess risk factors early and create an individualized prevention plan.
That plan may consider family medical history, genetics, blood pressure, cholesterol, blood sugar regulation, sleep, exercise, nutrition, mental health, medication use, prior head injuries, and menopause history. The central idea is straightforward: brain disease risk is not determined by one variable. It develops through a combination of genetic, hormonal, vascular, metabolic, inflammatory, and lifestyle factors.
Who should think about brain disease prevention?
We should consider prevention especially seriously when there is a family history of Alzheimer’s disease, Parkinson’s disease, Lewy body dementia, stroke, diabetes, high cholesterol, early heart disease, or significant mental health conditions. A history of surgically induced menopause, medically induced menopause, recurrent migraines, concussion, poor sleep, or chronically uncontrolled blood pressure can also be relevant.
Prevention is not reserved for older adults. The most meaningful work often begins in our 30s, 40s, and 50s, when we have more opportunity to improve modifiable risk factors.
Normal Aging vs. Cognitive Decline
Is forgetting a word or misplacing keys a sign of dementia?
Not necessarily. With age, processing speed, attention, multitasking, planning, and problem-solving can become less efficient. A familiar experience is knowing a word but needing extra time to retrieve it. Many apparent memory problems are actually attention problems: when we are distracted, stressed, exhausted, or juggling several tasks, the information may never be stored well enough to recall later.
Occasional word-finding difficulty or misplaced keys does not automatically mean dementia. However, persistent symptoms that interfere with daily functioning, worsen over time, involve getting lost in familiar places, disrupt financial or work responsibilities, or are noticed by close family members deserve medical evaluation.
Is true memory loss considered normal aging?
We should not dismiss meaningful memory loss as an inevitable part of getting older. Normal aging can involve slower retrieval and reduced efficiency, but progressive memory loss warrants attention. A clinical assessment can identify which cognitive areas are affected and whether another cause, such as sleep disruption, depression, anxiety, medication effects, hormonal change, vascular disease, or a neurodegenerative condition, may be involved.
Why Menopause Matters for Women’s Brain Health
Why are women disproportionately affected by Alzheimer’s disease and dementia?
Women account for a large share of people diagnosed with Alzheimer’s disease, and menopause is an important area of investigation. Estrogen receptors are present in the brain, and the rapid hormonal fluctuations of perimenopause may affect brain processes involved in neurodegeneration.
During perimenopause, estrogen and other female sex hormones can change quickly. These shifts may contribute to symptoms such as brain fog, poor concentration, sleep disruption, anxiety, and difficulty retrieving words. For a deeper look at the relationship between hormones, menopause, and cognition, read about the link between menopause and Alzheimer’s risk.
Can hormone therapy protect the brain?
Hormone therapy is not a one-size-fits-all brain health treatment. Available research discussed here suggests that timing matters: hormone therapy begun during perimenopause or around the menopausal transition, when symptoms are occurring, may offer more potential brain benefit than starting it many years after menopause.
Whether hormone therapy is appropriate depends on the individual. A history of breast cancer, blood clots, uncontrolled high blood pressure, cardiovascular risks, age, timing since menopause, symptoms, and personal preferences all matter. We should make these decisions with an experienced gynecologist or menopause clinician, and in complex cases, with collaboration between relevant specialists.
Women who cannot use estrogen still have meaningful options. Exercise, quality sleep, blood pressure management, cholesterol management, glucose regulation, nutrition, and mental health care are all important levers for protecting long-term brain health. For symptom-focused support, see this guide to menopausal memory loss and concentration changes.
Does sudden menopause raise concern?
Sudden declines in hormones can occur after ovary removal or treatments that suppress ovarian function. These abrupt changes may be particularly challenging for brain health. Women in this position should be especially proactive about the other modifiable risk factors, including regular activity, sleep, blood pressure, cholesterol, metabolic health, and psychological well-being.
The Core Brain Health Prevention Plan
What are the most important habits for preventing cognitive decline?
There is no single supplement, scan, medication, or lifestyle habit that can guarantee prevention. We get the strongest foundation by improving several systems at once:
- Know personal and family history. Identify diseases on both sides of the family and ask when they began.
- Protect vascular health. Keep blood pressure, cholesterol, insulin resistance, and diabetes under active medical management.
- Exercise consistently. Include strength, cardiovascular, balance, and cognitively challenging movement.
- Prioritize restorative sleep. Address the cause of sleep problems instead of only sedating them.
- Build cognitive reserve. Learn, socialize, create, and regularly try unfamiliar activities.
- Eat for brain and metabolic health. Emphasize whole foods, fish, berries, healthy fats, and adequate protein.
- Treat anxiety and depression. Mental health can affect sleep, motivation, social connection, and the ability to maintain healthy habits.
What type of exercise is best for the brain?
There is no universal exercise prescription. The best program reflects our current fitness, injury history, muscle mass, cardiovascular condition, and interests. The goal is a diverse movement routine that we can maintain.
Complex movement training deserves special attention. Dancing, martial arts, racquet sports, choreographed fitness, and similar activities combine balance, coordination, visual processing, decision-making, and movement. This can support both brain engagement and fall prevention.
Strength training also matters because maintaining muscle mass is important with aging. If we do cardio, it should not come at the expense of preserving needed strength and lean mass.
How does cognitive reserve protect the brain?
Cognitive reserve describes the brain’s ability to tolerate age-related or disease-related changes before symptoms become apparent. Education, cognitively demanding work, social connection, new learning, art, museums, adult classes, music, and learning a language may all help us build this reserve.
The key is novelty and challenge. Repeating only familiar tasks is different from asking the brain to adapt. A practical weekly goal could be one new movement skill, one social activity, and one learning activity that requires focused attention.
Sleep, Anxiety, Alcohol, and Medication Effects
Why is sleep essential for brain health?
Sleep supports the restorative processes that help the brain manage abnormal protein accumulation. Poor sleep is common in perimenopause and menopause, when hot flashes, night sweats, hormonal changes, anxiety, and frequent nighttime waking can all interfere with rest.
Before reaching for a sleep medication, we should identify what is disrupting sleep. Common contributors include late caffeine, screen use before bed, eating too close to bedtime, racing thoughts, hormonal symptoms, alcohol, untreated anxiety, and poor sleep routines. More guidance is available in this overview of menopausal sleep disorders.
Are over-the-counter sleep aids safe for long-term brain health?
Long-term reliance on sedating over-the-counter sleep products or prescription sedatives should be approached carefully with a clinician. These products may make us unconscious without delivering the quality and structure of sleep the brain needs. They may have a role in short-term, specific circumstances, but they should not be treated as a permanent solution without medical oversight.
Some supplements may be helpful for some people, but they are not interchangeable or risk-free. Magnesium and ashwagandha were discussed as options with potential usefulness. Long-term high-dose melatonin was approached cautiously because of possible effects on hormonal signaling. We should review all supplements, medications, and health conditions with a qualified clinician.
Is alcohol a good sleep aid?
No. Alcohol may make us feel sleepy, but it can reduce restorative sleep quality and alter deep and REM sleep. Using alcohol to fall asleep is not a brain health strategy. If we drink alcohol, it should not be relied on for sleep and should be considered in the context of overall health, medication use, and individual risk.
Can medications cause brain fog or memory problems?
Some medications may affect attention, processing speed, or subjective memory. Examples discussed include long-term use of certain acid reflux medications, sedating sleep aids, some anxiety medications, cancer therapies, and medications that alter hormones. The impact can differ greatly among individuals.
We should never stop an important medication abruptly because of brain fog. Instead, document the timing of symptoms, discuss alternatives with the prescribing clinician, and weigh cognitive side effects against the medication’s benefit for cancer prevention, cardiovascular risk reduction, mental health, or another serious condition.
Blood Pressure, Blood Sugar, Cholesterol, and MRI White Spots
Why are cardiovascular risk factors also brain risk factors?
The brain depends on healthy blood vessels and reliable blood flow. High blood pressure, high cholesterol, insulin resistance, diabetes, and prediabetes can damage small brain blood vessels over time. These changes may contribute to slower communication between brain cells and increase the risk of cognitive decline.
Brain health prevention is therefore not separate from heart and metabolic health. We should know our blood pressure, lipid profile, glucose status, physical activity level, sleep quality, and relevant family history.
Are white spots on a brain MRI benign?
White matter hyperintensities, often described as white spots on MRI, become more common with age, but they should not automatically be dismissed as harmless. They reflect changes in white matter, the insulated pathways that help brain cells communicate efficiently.
Their meaning depends on the person, overall MRI pattern, symptoms, and risk factors. Possible contributors discussed include migraines, concussion or head injury, high blood pressure, high cholesterol, insulin resistance, prediabetes, and diabetes. The number of spots alone does not tell the whole story because cognitive reserve also influences whether symptoms occur.
Is Alzheimer’s disease really type 3 diabetes?
We should be careful with that label. Alzheimer’s disease is not simply diabetes of the brain. However, changes in brain glucose metabolism can occur in Alzheimer’s disease and other neurodegenerative conditions. This makes insulin resistance and glucose regulation relevant to brain health, but it does not mean every person should take diabetes or weight-loss medication.
A normal hemoglobin A1C alone may not reveal early insulin resistance for every person. Depending on the clinical situation, clinicians may also consider fasting glucose, fasting insulin, and patterns of glucose response. Treatment decisions should be individualized, not driven by a trend or a single test.
APOE4: Important Information, Not a Destiny
What does it mean to carry the APOE4 gene?
APOE4 is a variant of the apolipoprotein E gene. Carrying one or two copies can increase risk for cardiovascular disease and certain neurodegenerative diseases, including Alzheimer’s disease. About one in four people carry one copy.
Risk is not certainty. APOE4 does not mean we will develop dementia. It is information that can help guide a more personalized discussion about cholesterol, vascular health, menopause, nutrition, sleep, and other prevention priorities.
Why does APOE4 affect the brain?
The brain makes its own cholesterol, which it needs to build cells and support neurotransmitter signaling. APOE helps move cholesterol between different brain cells. APOE4 is less efficient at this transport, which may contribute to cholesterol imbalance, inflammation, and neurodegenerative processes in some people.
People with two APOE4 copies have a higher risk than those with one copy, but the same principle remains: genes shape risk, not destiny.
Should everyone get APOE4 testing?
Genetic testing is a personal decision. It can be useful when we are prepared to discuss the result with a clinician who understands its limitations and can translate it into practical next steps. Testing without support can create anxiety and confusion because a positive result does not predict whether or when disease will occur.
For women considering menopause treatment, APOE status may become one more piece of an individualized risk discussion. It should not replace a full review of symptoms, personal history, cancer history, clotting risk, cardiovascular health, and other clinical considerations.
What nutrition advice is relevant for APOE4 carriers?
Fatty fish is the preferred dietary source of DHA, an omega-3 fatty acid. Tuna, salmon, mackerel, and sardines are examples. Two servings of fatty fish per week were suggested as a practical target. For people who do not eat enough fish, a DHA supplement may be considered with clinician guidance.
The discussion referenced research suggesting that APOE4 carriers may need a higher DHA intake to support delivery to the brain. Individual supplement needs can vary, especially for people who take blood thinners, have upcoming surgery, are pregnant, or have other medical conditions.
Foods and Supplements for Brain Health
What foods support a brain-healthy eating pattern?
Rather than chasing a perfect diet label, we can consistently choose a few high-value foods:
- Extra-virgin olive oil: One to two tablespoons daily was suggested, with emphasis on quality.
- Berries: Blueberries, strawberries, raspberries, and other berries provide antioxidant-rich options. Two or more servings daily were suggested.
- Fatty fish: A source of DHA and other omega-3 fats.
- Adequate protein: Important for preserving and building muscle, especially alongside strength training.
- Whole foods and prebiotic-rich plants: Flaxseed, chia seeds, raw vegetables, and other fiber-rich foods may support a healthier gut microbiome.
Excessive red meat was discouraged, while adequate total protein was emphasized. We should tailor dietary decisions to our preferences, health conditions, nutritional needs, and ability to sustain the pattern.
Is coffee good for the brain?
Coffee and tea contain caffeine and polyphenols, which may be relevant to brain health. Up to three cups of coffee per day was discussed as a possible upper range for people who tolerate it, but individual sensitivity varies greatly. For many people, one earlier-in-the-day cup may be more realistic.
Sleep remains the priority. Caffeine later in the day can quietly worsen sleep, anxiety, urinary urgency, and nighttime waking. If sleep is disrupted, reducing caffeine or moving it earlier is a sensible experiment.
Are probiotics necessary for brain health?
The gut-brain connection is an active area of research, particularly in Parkinson’s disease. Changes in the gut microbiome have been observed in Alzheimer’s and Parkinson’s disease, but there is not clear evidence that a standard probiotic supplement corrects those changes or prevents neurodegenerative disease.
A food-first approach that emphasizes fiber, prebiotic foods, whole foods, flaxseed, chia seeds, and vegetables is a practical way to support gut health. We should be wary of treating a probiotic as a stand-alone brain disease prevention treatment.
Biomarker Testing for Alzheimer’s Disease
Can a blood test diagnose Alzheimer’s disease?
Blood biomarkers are rapidly changing the field, but testing requires careful interpretation. Traditional evaluations have relied on cognitive assessments, brain imaging, amyloid PET scans, and cerebrospinal fluid testing. Blood tests can assess markers associated with amyloid, tau, inflammation, and neurodegeneration.
Relevant markers discussed include amyloid beta 42/40 ratio, phosphorylated tau 217, glial fibrillary acidic protein or GFAP, and neurofilament light chain or NfL. Each marker offers different information. A single amyloid-related result does not provide a complete answer because some people can have amyloid accumulation without cognitive symptoms.
Should we order direct-to-consumer Alzheimer’s blood tests?
We should be cautious. Not all direct-to-consumer tests have the same validation or accuracy, and a result can be difficult to interpret without a clinician who understands biomarkers, family history, APOE status, cognitive testing, and imaging. Physician-ordered testing may offer more validated options and a plan for interpreting the result.
At present, there are no universal guidelines for when an asymptomatic person should begin Alzheimer’s blood biomarker testing. Testing may be most useful when it answers a clear clinical question and is paired with appropriate counseling and follow-up.
Can biomarkers help prevent or reverse disease?
The goal of biomarkers is to identify where a person may be in a disease process and to personalize prevention or treatment decisions. Research is investigating whether earlier intervention, before extensive neurodegeneration occurs, can improve outcomes.
Anti-amyloid therapies and other approaches are being studied at earlier stages of Alzheimer’s disease. These treatments are complex, may not be appropriate for everyone, and should only be considered with specialists who can explain potential benefits, risks, eligibility, and monitoring requirements.
What to Do This Month for Better Brain Health
What is a realistic first-step checklist?
We do not need to transform everything in a week. Start with the areas most likely to make a durable difference:
- Document family history. Ask relatives about dementia, Parkinson’s, stroke, diabetes, cholesterol, heart disease, cancer, and the age of onset.
- Schedule preventive care. Review blood pressure, cholesterol, glucose, sleep problems, medications, mood, and menopause symptoms.
- Add one complex movement activity. Try dance, balance training, yoga, a racquet sport, or another coordinated activity.
- Build a sleep audit. Track bedtime, wake time, caffeine, alcohol, nighttime waking, hot flashes, anxiety, and screen habits for two weeks.
- Upgrade daily meals. Add berries, extra-virgin olive oil, fish or another clinician-approved omega-3 source, protein, and fiber-rich plants.
- Choose a new cognitive challenge. Start a language course, learn music, create art, take a class, or join a regular social activity.
- Address emotional health. Seek help for ongoing anxiety, depression, grief, or chronic stress.
What is the most important message for women concerned about dementia?
We should replace fear with informed action. A family history, APOE4 result, difficult menopause, MRI change, or current brain fog can be meaningful information, but none alone defines our future. The most effective approach is personal, sustained, and comprehensive: know the risks, work with qualified clinicians, and improve the factors we can change.
Concerned About Your Health? Talk to Dr. Aliabadi
Dr. Aliabadi is an expert OB/GYN who is knowledgeable in all aspects of women’s health and well-being. Dr. Aliabadi and her caring, supportive staff are available to support you through PCOS, endometriosis, menopause, childbirth, infertility, or routine gynecological care. We invite you to establish care with Dr. Aliabadi. Call us at (844) 863-6700 or
Brain Health and Dementia Prevention FAQ
Does menopause brain fog mean Alzheimer’s disease?
No. Brain fog, word-finding difficulty, concentration problems, and sleep disruption are common during perimenopause and menopause. However, persistent or worsening cognitive symptoms that affect daily life should be assessed by a clinician.
Can exercise reduce the risk of dementia?
Regular exercise is a central part of brain health prevention. A varied routine that includes cardiovascular activity, strength work, balance, and complex movement can support vascular health, muscle mass, coordination, and cognitive engagement.
Does APOE4 mean we will get Alzheimer’s disease?
No. APOE4 is a risk factor, not a diagnosis or certainty. It can guide more personalized attention to cardiovascular health, nutrition, menopause planning, sleep, and other modifiable risks.
Are white spots on a brain MRI always dangerous?
No. White matter changes can have several causes, including age, migraines, head injury, and vascular risk factors. Their significance depends on the MRI pattern, symptoms, medical history, and overall risk profile.
Should we take supplements to prevent dementia?
Supplements are not substitutes for sleep, exercise, blood pressure control, metabolic health, nutrition, and medical care. DHA, vitamin D, magnesium, B vitamins, and other supplements may be appropriate in specific situations, but choices and doses should be individualized with a clinician.
