How to Support Brain Health and Reduce Dementia Risk Naturally

Dementia affects millions of individuals and families worldwide, impacting memory, thinking, behavior, and the ability to perform everyday activities. While there is currently no cure for most forms of dementia, a growing body of research suggests that many lifestyle factors may influence long-term brain health and cognitive resilience.

The encouraging news is that supporting your brain health often begins with the same habits that support overall health: regular physical activity, nutritious eating, quality sleep, social engagement, stress management, and lifelong learning.

Scientists are increasingly discovering that the brain remains adaptable throughout life. Through a process known as neuroplasticity, the brain can continue forming new connections, strengthening existing pathways, and adapting to new challenges well into older adulthood.1

While no single strategy can guarantee prevention, adopting brain-healthy habits may help reduce risk factors associated with cognitive decline and support healthy aging.

Understanding Dementia

Dementia is not a specific disease. Rather, it is an umbrella term used to describe a group of symptoms that affect memory, thinking, reasoning, communication, and daily functioning.

These symptoms occur when brain cells become damaged or lose their ability to communicate effectively with one another. Depending on the underlying cause, dementia can affect different areas of the brain and produce varying symptoms.

Importantly, dementia is not considered a normal part of aging. Although certain cognitive changes can occur as we grow older, significant memory loss and impaired daily functioning should always be evaluated by a healthcare professional.

Common Types of Dementia

Alzheimer's Disease

Alzheimer's disease is the most common form of dementia, accounting for approximately 60–80% of cases. It is characterized by the accumulation of amyloid plaques and tau tangles within the brain, which disrupt communication between neurons and eventually lead to cell death.

Vascular Dementia

Vascular dementia occurs when reduced blood flow damages areas of the brain. This may result from strokes, small vessel disease, or other conditions affecting the vascular system.

Lewy Body Dementia

Lewy body dementia is associated with abnormal deposits of a protein called alpha-synuclein. Symptoms often include changes in thinking, visual hallucinations, fluctuations in alertness, and sleep disturbances.

Frontotemporal Dementia

Frontotemporal dementia primarily affects the frontal and temporal lobes of the brain. Individuals often experience changes in personality, behavior, language, and emotional regulation.

Other Less Common Forms of Dementia

• Parkinson's Disease Dementia

• Creutzfeldt-Jakob Disease

• Huntington's Disease

• Normal Pressure Hydrocephalus

• Posterior Cortical Atrophy

• Alcohol-Related Brain Injury

• HIV-Associated Dementia

• Chronic Traumatic Encephalopathy (CTE)

It's important to note that dementia is not a normal part of aging, and its symptoms can vary depending on the underlying cause. Early diagnosis and proper management can significantly improve the quality of life for individuals with dementia and their caregivers.

Common Symptoms of Dementia

Memory loss is often the first noticeable sign of dementia. You might forget recently learned information or important dates and events.

Difficulty with problem-solving and planning can occur. Simple tasks like managing finances or following recipes may become challenging, or even everyday tasks like remembering where you placed your keys could be stressful and an early reminder to take care of your brain health. 

Communication problems are common. You might struggle to find the right words or follow conversations.

Confusion about time or place is another symptom. You may lose track of dates, seasons, or the passage of time.

Changes in mood and behavior can also develop. You might experience depression and anxiety or become easily upset.

Risk Factors

Age is the most significant risk factor for dementia. Your risk doubles every five years after age 65.

Genetics play a role, especially in early-onset Alzheimer's. If you have a family history, your risk may be higher.

Cardiovascular health is crucial. High blood pressure, high cholesterol, and obesity increase your risk.

Smoking damages blood vessels and increases dementia risk. Quitting can help reduce this risk.

Excessive alcohol consumption can harm brain health. Moderate drinking or abstaining is recommended.

Head injuries, especially repeated ones, may increase dementia risk. Protect your head during sports and activities.

Hearing loss in midlife is associated with increased dementia risk. Regular hearing checks are important.

Air pollution exposure may contribute to cognitive decline. Living in areas with cleaner air could be beneficial.

The Role of BDNF in Brain Health

Brain-Derived Neurotrophic Factor (BDNF) is often described as "fertilizer for the brain" because of its important role in supporting the growth, survival, and communication of brain cells. Researchers have found that BDNF helps neurons form new connections, strengthen existing pathways, and adapt to new experiences throughout life.

This adaptability is known as neuroplasticity, the brain's remarkable ability to reorganize itself in response to learning, experience, and environmental changes. While neuroplasticity is often associated with childhood development, research shows that the brain retains the capacity to adapt and change well into older adulthood. 2

BDNF plays a central role in learning and memory. Higher levels of BDNF are associated with improved communication between neurons and enhanced support for the brain regions involved in memory formation and cognitive function. Conversely, lower levels of BDNF have been associated with aging, chronic stress, and certain neurodegenerative conditions.

One of the most effective ways to naturally stimulate BDNF production is through regular physical activity. Aerobic exercise such as walking, jogging, swimming, cycling, and other forms of cardiovascular training have consistently been shown to increase BDNF levels. Mental challenges, social engagement, quality sleep, and a nutrient-rich diet may also help support healthy BDNF activity.3

Although no single factor can prevent dementia, supporting neuroplasticity through healthy lifestyle habits may help promote cognitive resilience and healthy brain aging. Scientists continue to study BDNF as an important link between lifestyle choices, brain adaptability, and long-term cognitive health.

Dr. Kaplan's Perspective

One of the most encouraging discoveries in neuroscience is that the brain remains adaptable throughout life. Many people believe they are simply losing brain function as they age, but the reality is more hopeful. The brain continues to respond to exercise, learning, social interaction, and healthy lifestyle choices well into later adulthood. While aging is inevitable, supporting neuroplasticity through consistent healthy habits may help maintain cognitive function and improve the brain's ability to adapt over time.

Diet and Nutrition: Reducing Your Risk of Dementia

Proper nutrition plays a crucial role in brain health and may help reduce the risk of dementia. Certain foods and dietary patterns have shown promise in supporting cognitive function and protecting against cognitive decline.

Brain-Healthy Foods

Berries are packed with antioxidants that can help protect brain cells from damage. Blueberries, strawberries, and blackberries are excellent choices. Leafy greens like spinach and kale provide essential nutrients and antioxidants that support brain health.

Fatty fish rich in omega-3 fatty acids, such as salmon and sardines, can help reduce inflammation in the brain. Nuts and seeds, particularly walnuts and flaxseeds, are also good sources of omega-3s and healthy fats.

Beans and legumes offer a steady supply of energy to the brain and are high in fiber. Olive oil, a key component of the Mediterranean diet, contains beneficial compounds that may protect brain cells.

Recommended Diets

The MIND (Mediterranean-DASH Intervention for Neurodegenerative Delay) Diet combines elements of the Mediterranean and DASH diets. It emphasizes plant-based foods, berries, nuts, olive oil, and fish while limiting red meat, butter, and sweets 4

The Mediterranean diet focuses on fruits, vegetables, whole grains, legumes, and healthy fats like olive oil. It also includes moderate amounts of fish and poultry.

The DASH (Dietary Approaches to Stop Hypertension) diet is designed to lower blood pressure, which may reduce dementia risk. It emphasizes fruits, vegetables, whole grains, and lean proteins while limiting saturated fats and sodium.

Dr. Kaplan's Perspective

When patients ask me what dietary approach is best for long-term brain health, I often emphasize consistency over perfection. The research continues to point toward dietary patterns rich in vegetables, fruits, healthy fats, legumes, and whole foods rather than any single "superfood." The MIND and Mediterranean diets are particularly interesting because they focus on foods that support both cardiovascular and cognitive health. Since the brain relies on a healthy blood supply to function optimally, many of the same habits that protect the heart may also help support memory, focus, and healthy cognitive aging.

Exercise and Physical Activity

Regular physical activity is crucial for maintaining brain health and potentially reducing dementia risk. Exercise offers numerous benefits for cognitive function and overall well-being.

Types of Beneficial Exercise

Aerobic exercises like brisk walking, swimming, and cycling can improve blood flow to the brain. Aim for at least 150 minutes of moderate-intensity aerobic activity per week. Strength training exercises using weights or resistance bands help maintain muscle mass and bone density. Include these 2-3 times weekly.

Balance and flexibility exercises such as yoga or tai chi enhance coordination and reduce fall risk. Practice these activities 2-3 times per week. Dancing combines physical and mental engagement, offering a fun way to stay active.

Combating Cognitive Decline Through Exercise

Physical activity may slow cognitive decline by promoting neuroplasticity and increasing brain volume. Exercise stimulates the growth of new brain cells and strengthens connections between existing ones. Regular workouts can improve memory, attention, and decision-making skills.

Physical activity helps maintain a healthy weight and reduces stress, both factors linked to lower dementia risk. Exercise also promotes better sleep quality, which is essential for brain health. Engaging in group fitness classes or team sports adds social interaction, further supporting cognitive function.5

Dr. Kaplan's Perspective

If I could recommend only one lifestyle intervention for supporting long-term brain health, regular exercise would be near the top of the list. Physical activity improves circulation, supports cardiovascular health, promotes better sleep, helps manage stress, and stimulates the production of BDNF. The encouraging news is that you don't need to become a marathon runner to experience benefits. Consistent activities such as walking, swimming, cycling, strength training, or even dancing can have meaningful effects on both physical and cognitive well-being over time.

Sleep and Cognitive Health

Sleep is far more than a period of rest. During sleep, the brain performs many essential maintenance functions that support learning, memory, and overall cognitive performance. Researchers increasingly recognize quality sleep as one of the most important pillars of long-term brain health.

One of sleep's most important roles is memory consolidation. Throughout the day, the brain gathers new information and experiences. During sleep, these memories are processed, organized, and stored, helping transform short-term experiences into longer-term memories. Poor sleep can interfere with this process, making it more difficult to learn new information and recall it later.

Sleep also supports the brain's glymphatic system, a specialized waste-clearing network that becomes more active during deep sleep. This system helps remove metabolic waste products that accumulate throughout the day. Researchers have become particularly interested in its role in clearing proteins such as beta-amyloid, which are associated with Alzheimer's disease.6

Chronic sleep deprivation has been linked to difficulties with attention, concentration, decision-making, and memory. Over time, poor sleep may also contribute to increased inflammation, reduced cognitive performance, and a higher risk of age-related cognitive decline.

Fortunately, improving sleep habits can benefit brain health at any age. Maintaining a consistent sleep schedule, limiting caffeine late in the day, reducing screen exposure before bedtime, and creating a cool, comfortable sleep environment can all help support restorative sleep.

While occasional poor sleep is a normal part of life, prioritizing quality sleep on a consistent basis may be one of the most effective strategies for supporting cognitive function and healthy brain aging.7

Dr. Kaplan's Perspective

Sleep is often overlooked when people think about brain health, yet it may be one of the most important daily habits we have. In clinical practice, I've frequently seen how poor sleep affects focus, memory, mood, and overall quality of life. Many people are surprised to learn that supporting brain health isn't only about what happens during the day—it's also about giving the brain adequate time each night to recover, process information, and perform its essential maintenance functions.

Lifestyle Modifications

Adopting healthy habits can significantly impact your risk of developing dementia. Focusing on stress management, mental well-being, social connections, and cognitive stimulation may help protect your brain health as you age.

Stress Management and Mental Health

Chronic stress can negatively affect your brain function and increase dementia risk. Incorporate stress-reduction techniques into your daily routine. Try mindfulness meditation, deep breathing exercises, or yoga to calm your mind and body.

Regular exercise is a powerful stressbuster. Aim for at least 30 minutes of moderate activity most days. This can include brisk walking, swimming, or cycling.

Prioritize quality sleep. Establish a consistent bedtime routine and create a relaxing sleep environment. Aim for 7-9 hours of sleep per night to support brain health and reduce stress.

Seek professional help if you're struggling with anxiety or depression. These conditions can impact cognitive function and increase dementia risk if left untreated.

Social Engagement and Cognitive Stimulation

Stay socially active to keep your brain sharp. Maintain close relationships with family and friends. Join clubs, volunteer, or participate in community activities to expand your social network.

Challenge your mind regularly. Learn a new language, take up a musical instrument, or try complex puzzles. These activities can help build cognitive reserve and potentially delay dementia onset.

Consider furthering your education. Taking classes or pursuing new areas of study can stimulate your brain and may reduce dementia risk.

Stay informed about current events and engage in stimulating discussions. This can help maintain cognitive flexibility and keep your mind active.

Hearing Health and Dementia Risk

Hearing loss has emerged as one of the most significant modifiable risk factors associated with dementia.8 In recent years, researchers have become increasingly interested in the connection between hearing health and cognitive function, particularly during midlife and older adulthood.

One theory involves what scientists call "cognitive load." When hearing becomes impaired, the brain must work harder to process sounds and understand conversations. As more mental resources are devoted to hearing, fewer may be available for memory, attention, and other cognitive functions.

Hearing loss can also contribute to social isolation, which is itself associated with cognitive decline. Individuals who struggle to hear conversations may gradually withdraw from social situations, reducing opportunities for meaningful engagement and mental stimulation. Over time, decreased social interaction may negatively affect brain health and overall well-being.

Research suggests that addressing hearing loss may help support cognitive health. Regular hearing evaluations can identify changes early, allowing individuals to explore options such as hearing aids or other interventions when appropriate.

Protecting hearing throughout life is another important consideration. Limiting exposure to excessive noise, using hearing protection in loud environments, and seeking evaluation when hearing changes occur may help preserve hearing function and support healthy cognitive aging.

While hearing loss does not directly cause dementia, maintaining hearing health represents another important piece of a comprehensive brain health strategy.

Nutritional and Botanical Ingredients Being Studied for Brain Health

Researchers continue to study a variety of nutritional and botanical compounds for their potential role in supporting memory, focus, learning, and overall cognitive health. While supplements are not a substitute for healthy lifestyle habits, certain ingredients have shown promise in scientific research.

Omega-3 Fatty Acids

Fish oil is beneficial for the brain due to its high content of omega-3 fatty acids, particularly EPA and DHA, which support the structure and function of brain cells. Omega-3 fatty acids, found in sources like fatty fish, walnuts, and flaxseeds, are essential for supporting the structure and function of brain cells. These nutrients help reduce inflammation and improve communication between neurons, which can enhance cognitive function and help protect against neurodegenerative diseases.

Curcuminoids from Turmeric

Curcuminoids, the active compounds found in turmeric, offer potent antioxidant and anti-inflammatory benefits that help protect the brain from oxidative stress. By supporting a healthier cellular environment, these compounds may enhance cognitive performance and promote long-term brain resilience.

Bacopa Monnieri

Bacopa monnieri, an herb traditionally used in Ayurvedic medicine, is well-regarded for its potential to enhance memory and cognitive function. It works by supporting synaptic communication and promoting neuroprotection, which can help improve learning and overall brain health.

Phosphatidylserine

Phosphatidylserine is a phospholipid naturally found in brain cell membranes that supports structural integrity, signal transmission, and cognitive functions like memory and attention. By maintaining the health of these cell membranes, it helps support optimal neuronal communication and overall cognitive performance.

Boswellia

Boswellia serrata is a traditional botanical extract derived from the resin of the Boswellia tree, long valued in Ayurvedic medicine for its ability to support healthy inflammatory responses. Its active compounds, boswellic acids, are studied for their potential to reduce neuroinflammation, protect neurons from oxidative stress, and support overall cognitive health.

NutriCog®

Clinical studies have investigated its potential role in supporting memory, learning, attention, and executive function.

B Vitamins

B vitamins, particularly B6, B9 (folate), and B12, play a critical role in brain health by supporting energy production and the synthesis of neurotransmitters essential for cognitive function. Adequate levels of these vitamins help lower homocysteine levels in the blood, which can support memory and reduce the risk of cognitive decline as you age.

Ginkgo Biloba

Ginkgo biloba extract is widely utilized for its potential to support cognitive function by improving blood flow to the brain and acting as a powerful antioxidant. It may improve blood flow to the brain and act as an antioxidant. Research suggests it may help enhance memory, attention, and overall cognitive processing speed.

Aromatherapy

Aromatherapy using essential oils like lavender or lemon balm may help reduce agitation and improve sleep in some people with dementia. By promoting relaxation and potentially modulating stress responses, these scents can help ease anxiety and support a calmer, more focused state of mind.

Always consult your doctor before starting any new supplements. Some may interact with medications or have side effects.

Mind-Body Practices

Meditation and mindfulness techniques can help reduce stress and improve overall well-being. These practices may also enhance attention and cognitive flexibility in people with dementia.

Yoga combines physical postures, breathing exercises, and meditation. It can improve balance, reduce anxiety, and promote relaxation.

Regular engagement in these activities may help:

• Reduce stress and anxiety

• Improve sleep quality

• Enhance mood and emotional well-being

• Boost cognitive function

Consider joining a class or using guided recordings to get started with these practices.

Preventing Dementia

Preventing dementia involves adopting healthy lifestyle habits and managing risk factors. By taking proactive steps early in life, you can significantly reduce your chances of developing cognitive decline as you get older.

Importance of Early Prevention

Start your dementia prevention efforts as early as possible. Engaging in mentally stimulating activities throughout your life builds cognitive reserve. Learn new skills, pursue education, or take up challenging hobbies.

Exercise regularly to improve blood flow to your brain. Aim for at least 150 minutes of moderate aerobic activity per week. Stay socially active by connecting with friends and family.

Prioritize quality sleep. Aim for 7-9 hours nightly. Poor sleep is linked to increased dementia risk.

Managing Chronic Conditions

Control high blood pressure, as it's a major risk factor for vascular dementia. Keep your blood pressure below 130/80 mmHg through medication and lifestyle changes.

Manage diabetes by maintaining healthy blood sugar levels. Uncontrolled diabetes can damage blood vessels in your brain.

Keep your cholesterol in check. High levels can contribute to the buildup of plaques in arteries, reducing blood flow to the brain.

Quit smoking and limit alcohol intake. Both habits increase your risk of dementia and other health issues.

Enhancing Brain Reserve

Build your cognitive reserve through lifelong learning. Take classes, learn a new language, or master a musical instrument. These activities create new neural connections.

Eat a brain-healthy diet rich in omega-3 fatty acids, antioxidants, and vitamins. Consider the Mediterranean or MIND diet, which emphasizes fruits, vegetables, whole grains, and lean proteins.

Engage in mentally challenging activities like puzzles, strategy games, or reading. These exercises help maintain cognitive function and may delay the onset of dementia symptoms.

Practice stress-reduction techniques such as meditation or yoga. Chronic stress can negatively impact brain health over time.

Dr. Kaplan's Perspective

One of the most encouraging lessons emerging from modern neuroscience is that our brains remain adaptable throughout life. While aging is inevitable, many of the factors that influence brain health are within our control. Regular exercise, nutritious food, quality sleep, social engagement, lifelong learning, and managing chronic health conditions all contribute to a healthier environment for the brain.

I often remind patients that supporting brain health is not about finding a single solution or achieving perfection. Rather, it is the result of consistent daily habits that work together over time. The choices we make today may influence how well our brains function tomorrow, helping support memory, learning, focus, and overall cognitive well-being throughout the aging process.

Conclusion

Supporting brain health and reducing dementia risk requires a comprehensive approach that extends far beyond any single intervention. Research continues to show that regular exercise, nutritious eating, quality sleep, social engagement, lifelong learning, and the management of chronic health conditions all play important roles in maintaining cognitive function as we age.

The encouraging news is that the brain remains adaptable throughout life. Through neuroplasticity, the brain continues to respond to healthy habits, new experiences, and meaningful challenges well into older adulthood.

While no strategy can completely eliminate the risk of dementia, the choices we make each day may help support memory, learning, focus, and overall cognitive resilience. By taking proactive steps to care for your brain today, you can help create a stronger foundation for healthy cognitive aging in the years ahead.9

Resources

1. Gazerani, P. The Neuroplastic Brain: Current Breakthroughs and Emerging Frontiers. ScienceDirect. 2025.

2. Toader, C. From Synaptic Plasticity to Neurodegeneration: BDNF as a Transformative Target in Medicine. International Journal of Molecular Sciences. 2025.

3. Tutakhail, A., et al. Harnessing Exercise for Brain Health: BDNF, Neuroplasticity, and Well-Being. ScienceDirect. 2026.

4. Morris, M.C., et al. MIND Diet Associated with Reduced Incidence of Alzheimer's Disease. Alzheimer's & Dementia. 2015.

5. Wanigatunga, A., PhD, MPH, et al. Small Amounts of Moderate to Vigorous Activity at Any Dose Reduce All-Cause Dementia Risk Regardless of Frailty Status. JAMA. 2025.

6. Reddy, O., et al. The Sleeping Brain: Harnessing the Power of the Glymphatic System Through Lifestyle Choices. Brain Sciences. 2020.

7. Ungvari, Z., et al. Sleep Disorders Increase the Risk of Dementia, Alzheimer's Disease, and Cognitive Decline: A Meta-Analysis. NIH / National Library of Medicine. 2025.

8. Livingston, G., MD, et al. Dementia Prevention, Intervention, and Care: 2024 Report of the Lancet Standing Commission. The Lancet. 2024.

9. Baker, L., PhD, et al. Structured vs Self-Guided Multidomain Lifestyle Intervention for Global Cognitive Function: The U.S. POINTER Randomized Clinical Trial. JAMA. 2025.