Building Your Alzheimer’s Resistant Brain

I have experienced that dementia runs in my family; however, I am not claiming it as my fate. This does not have to be my destination though the genes may be on the map.  

Though we do not have control over our genes or our family history, it is critical to know that there are many opportunities to help reducing our risk of developing this deadly disease with no cure – Alzheimer’s disease.

Research shown that Alzheimer’s disease dementia begins approximately 15 years prior to the first identifiable symptoms of memory loss surface. Therefore, it is important to protect your brain health from an early age. In 2021 a review of some major trials was published in the Journal of Neurology, Neurosurgery and Psychiatry, identified a few significant risk factors for Alzheimer’s disease. In this review they recorded a list of ‘must do’ habits we can adopt into our daily lifestyle habits to possibly lower our risk of the disease as we age. 

Many of these recommendations are focused on the key areas that the charity BHAM Brain Health and Alzheimer’s and Braintific.net community education focuses on in our public awareness campaigns: exercise, mental fitness, emotional well-being, good nutrition, and sleep. Putting these key areas to the forefront of your health agenda doesn’t guarantee that you will not develop dementia, however, however when you modify the activities in your life to build what BHAM Alzheimer’s and Braintific refer to as an ‘Alzheimer’s Resistant Brain’ you will experience improvements. 

Exercise 

Many studies have identified that your mental health and physical fitness go hand in hand. The part of your brain that is primarily responsible for your memory and learning is called the hippocampus. For those of who exercise and are more physical fit tend to have a larger hippocampus than those who don’t. Research has shown that older adults who exercise experience an increase in the size of their hippocampus, which improved their memory function. 

There is clear scientific evidence that physical activity helps maintain and improves cognition, minimizes stress levels, which can heavily contribute to our cognitive decline and according to research increases the level of proteins in our brains to help maintain its functioning. Choose a physical activity that you like and will stick with. Aim for at least 30 minutes a day and five days a week. This activity does not have to be extremely strenuous, however choose an activity that gets your heartbeat up. 

Mental Fitness 

Your mental fitness is defined as your ability to think clearly and make decisions effectively and efficiently. Some examples of mental fitness are taking time for inner work, being able to set healthy boundaries, cultivating community, expanding your comfort zone. Pay attention to your learning from childhood through your adulthood as it prevents cognitive decline in later life. According to research, the more education people have been exposed to, the more protection they have against declining cognition in later life. Education also contributes to our ‘cognitive reserve.’ Cognitive reserve is developed by a lifetime of education and curiosity. Cognitive reserve refers to the brain’s ability to compensate for damage with more efficient connectors. This does not mean that if you don’t have higher education, that you are doomed to develop Alzheimer’s disease or related dementia. A wide range of mental, social, and physical activities that started early in your life and continued throughout are important factors in reducing your risk to dementia. 

Memory training programs have been touted to power up the brain, but it is not realistic. A more realistic and easier activity would be to exercise your brain with intellectual and social activities. Do things you enjoy as you are more likely to stick with them. Such activities as learning a new language, reading, games, puzzles, art, learn the guitar, piano or violin, even dancing combines both your intellectual and physical components. In addition, your will enjoy the event, and be emotionally connected in a positive way. These suggested activities are ways that grow your brain in meaningful ways for you. 

Emotional well-Being 

Continuous stress, early and significant trauma and depression are all contributing factors to developing Alzheimer’s disease and related dementia. Part of maintaining your brain health requires caring for your emotional well-being.  Some suggested activities to promote emotion well-being are: mind-body wellness activities such as yoga, meditation, deep breathing exercises, tai chi; take time to be with nature (I love being near the water or walking bare feet in the grass or walking amongst the trees); find time to socialize and laugh either in person or virtually with friends or family; join a group to learn new things or meet new people. Try hanging out with your best work friend during lunch or after work hours or reconnect with college classmates on a group call. These activities are enhancers to your emotional well-being, do them often. 

Good Nutrition 

Both a brain healthy diet and heart healthy diet are the same. Experts highly recommend the Mediterranean diet as the ideal diet to follow. This nutritional diet consists of plenty of fruits, vegetables, whole grains, nuts, beans, and seeds, olive oil as the primary fat source along with a moderate serving of eggs, poultry, fish, and dairy. The American Heart Association along with many studies endorse this diet is associated with a lower risk of cognitive decline.

Combining a healthy diet and physical exercise can protect both the brain and heart against diabetes, high blood pressure and high cholesterol which are known as significant risk factors of Alzheimer’s disease. Your accumulated exposure over your lifetime is more the cause of this disease, not just your blood pressure and diabetes that you may have in your sixties and seventies that put you at risk for Alzheimer’s disease.  Both midlife hypertension and diabetes have significant effect on your brain and because we are finding more sensitive ways of detecting brain damage, we are able to see that the period we define as ‘midlife’ seems to start earlier that we are aware of. 

It's important to understand that brain health supplements also referred to as memory vitamins are simple marketing ploys. So don’t waste your money. 

If there has been a diagnosis of deficiency in certain food nutrients, then supplementing to a normal range can be beneficial. If you are eating a healthy diet with a normal nutritional intake, there is no need for additional supplements.  

Quality Sleep 

Studies have shown that our sleep patterns in our early life may either save us from or contribute to later life dementia risk. Insufficient sleep and excessive sleep habits have been linked to a greater change of developing dementia. You can protect you brain health simply by creating a sleep schedule and sticking to it. Sleep, especially during deep sleep is the main opportunity for brain recovery when the buildup of harmful proteins and amyloid are removed from the brain.  

Studies suggest that if you are consistently sleep deprived, you may be at increased long-term risk of developing Alzheimer’s disease and related dementia. Studies found that even a single night of sleep deprivation can increase levels of tau and amyloid in your brain. It has been recommended that retiring to bed at the same time every night (including weekends), avoiding caffeine and alcohol in the evening, eliminating exercise right before bed. Another important tip is to keep your bedroom free of distractions (especially screentime), keep in cool and comfortable.

Conclusion: Building Resilience for the Long Journey

The science is clear: while we cannot rewrite our genetic code or erase family history, we do hold significant influence over how our brains age. Building an “Alzheimer’s Resistant Brain” is not about promising immunity—it is about stacking the odds in our favor through consistent, intentional habits. Exercise, lifelong learning, emotional well-being, nutrition, and restorative sleep are not simply lifestyle choices; they are protective strategies, forming the foundation of resilience that can carry us well into older age.

What is powerful—and deeply hopeful—is the realization that these choices are cumulative. The steps we take in childhood, midlife, and beyond weave together into a lifelong safety net for our brains. Even small, sustainable changes can yield meaningful protection. A daily walk, a mindful pause, a shared laugh, or a night of quality rest may seem ordinary, but together they are extraordinary acts of prevention.

Final Thoughts

Alzheimer’s disease does not have to be accepted as an inevitable outcome, even for those with a family history. By reframing brain health as a lifelong practice, we shift from fear to empowerment. The journey is not about perfection but about persistence—about choosing, day by day, to nurture the mind, body, and spirit.

Caregivers, professionals, and individuals with MCI all share in this mission. Caregivers can model brain-healthy behaviors while protecting their own resilience. Workplaces can encourage dementia-friendly practices that support both employees and families. And individuals facing memory changes can reclaim agency, embracing lifestyle strategies as tools of dignity and hope.

In the end, building your Alzheimer’s resistant brain is not only about adding years to life, but also about adding life to years—preserving memory, meaning, and connection for as long as possible.