One of the questions I hear most often from adults over 50 is also one of the most personal:

"Are the changes I'm noticing in my memory just part of getting older—or should I be worried?"

Maybe you've forgotten someone's name, struggled to find the right word in a conversation, or walked into a room only to forget why you went there. Moments like these can be frustrating, especially if you've watched a parent or loved one develop Alzheimer's disease or another form of dementia.

The good news is that occasional forgetfulness isn't automatically a sign of dementia. In many cases, changes in memory and mental sharpness can be influenced by factors like poor sleep, chronic stress, medications, inactivity, poor nutrition, hearing loss, depression, or simply the normal aging process.

More importantly, decades of research suggest there are practical steps you can take to support your brain throughout your life. While there's no magic pill that prevents dementia, the choices you make every day can help create an environment where your brain is better equipped to stay healthy as you age.

Your Brain Is More Adaptable Than You Think

One of the biggest misconceptions I hear is that cognitive decline is simply unavoidable.

While aging itself is inevitable, many of the factors that influence brain health are surprisingly within our control.

Genetics certainly matter. If Alzheimer's disease runs in your family, it's natural to wonder whether you'll experience the same thing. But genes are only part of the equation. Research continues to show that lifestyle plays an enormous role in supporting long-term brain health.

Rather than asking, "Am I destined to lose my memory?" I encourage people to ask a different question:

"What can I do today to give my brain the best chance of staying healthy?"

Fortunately, the answers are both practical and encouraging.

Feed Your Brain the Nutrients It Needs

Although your brain makes up only about 2% of your body weight, it consumes roughly 20% of your body's energy. That's why what you eat has such a profound impact on how clearly you think, how well you concentrate, and how resilient your brain remains as you age.

The strongest evidence points toward a diet rich in colorful vegetables, berries, healthy fats like olive oil, nuts, seeds, fish rich in omega-3 fatty acids, and quality protein. These foods provide many of the building blocks your brain depends on to maintain healthy cells and communication between neurons.

Omega-3 fatty acids deserve special attention because they're a major structural component of the brain. If you don't regularly eat fatty fish, talk with your healthcare provider about whether an omega-3 supplement may be appropriate for you.

Many researchers also support dietary patterns similar to the Mediterranean and MIND diets because they're associated with better long-term brain health.

On the other hand, diets high in added sugars, heavily processed foods, and excessive alcohol may contribute to inflammation and metabolic changes that can negatively affect brain health over time.

No single food prevents dementia, but consistently nourishing your brain gives it the resources it needs to function at its best.

Support Your Brain's Energy System

One of the themes emerging from brain health research is that keeping your brain energized may be just as important as keeping it nourished.

Every thought, memory, and decision you make requires energy. As we age, the brain's ability to efficiently produce and use that energy can naturally decline, which is one reason researchers are paying closer attention to nutrients involved in cellular energy production.

Creatine has become one of the most exciting areas of brain health research in recent years. While most people associate creatine with muscle health, scientists now know the brain also stores and uses creatine as part of its energy system. Researchers are studying whether creatine supplementation may help support the brain's energy demands, particularly during aging and periods of increased mental effort. While more research is still needed, it's an area I'm watching closely.

CoQ10 is another nutrient involved in mitochondrial energy production—the process every cell uses to generate energy. Because brain cells have especially high energy needs, researchers continue to investigate CoQ10's potential role in supporting healthy brain aging.

The important takeaway is this: supplements should support healthy habits—not replace them. No supplement has been proven to prevent or cure Alzheimer's disease, and you should be skeptical of any product that claims otherwise.

Movement Is Brain Medicine

One of the most encouraging findings in brain health research is that exercise benefits the brain at virtually every age.

Regular physical activity increases blood flow to the brain, supports healthy blood vessels, improves insulin sensitivity, reduces inflammation, and encourages the release of brain-derived neurotrophic factor (BDNF)—often described as "fertilizer for the brain" because it helps support the growth and maintenance of healthy neurons.

Research also suggests that maintaining muscle health supports healthy brain aging. Scientists are continuing to explore the connection between muscle, metabolism, and cognitive function, giving us even more reason to stay active throughout life.

Walking, cycling, swimming, resistance training, or even chair exercises can all provide meaningful benefits. If arthritis or chronic pain limits what you can do, don't assume you're out of options. The goal isn't perfection—it's consistency.

Never Underestimate Sleep

Many people focus on diet and exercise while overlooking one of the brain's most important maintenance systems: sleep.

During deep sleep, the brain helps clear away waste products that accumulate throughout the day. Poor sleep, untreated sleep apnea, and chronic insomnia have all been associated with poorer cognitive performance and an increased risk of future cognitive decline.

If you regularly wake feeling exhausted, or your partner notices loud snoring or pauses in breathing, it's worth talking with your healthcare provider about whether sleep apnea could be playing a role.

Improving sleep quality may be one of the most powerful—and often overlooked—ways to support your brain.

Keep Challenging Your Brain

Your brain is designed to adapt throughout your life.

Learning a new language, reading books that stretch your thinking, taking classes, playing a musical instrument, volunteering, or developing a new hobby all encourage your brain to build and strengthen neural connections.

Just as important is staying socially connected. Meaningful conversations, time with family and friends, and participating in your community all provide valuable mental stimulation that supports healthy cognitive aging.

When Should You Talk to Your Doctor?

Occasional forgetfulness is common.

However, it's important to seek medical evaluation if memory problems begin interfering with daily life, finances, medications, driving, conversations, or familiar routines. Rapid changes in thinking, confusion, personality changes, or getting lost in familiar places also deserve prompt medical attention.

Many conditions that affect memory—including thyroid disorders, vitamin deficiencies, medication interactions, depression, hearing loss, and sleep disorders—can often be identified and treated.

Early evaluation offers the best opportunity to understand what's causing your symptoms and determine the most appropriate next steps.

Focus on What You Can Control

One of the greatest fears people have is losing their independence.

The encouraging news is that many of the biggest drivers of brain health are within your control.

Nourish your brain with wholesome foods. Stay physically active. Prioritize quality sleep. Challenge your mind. Stay socially connected. Manage chronic health conditions. And if you're considering supplements, have a conversation with your healthcare provider about whether options such as omega-3s, creatine, or CoQ10 fit into your overall wellness plan.

Most importantly, don't ignore changes in your memory. If something feels different, talk with your healthcare provider.

Supporting your brain isn't about finding one miracle solution. It's about building daily habits that help your brain stay energized, resilient, and healthy for years to come.

It's never too early—or too late—to invest in your brain health.

Click here to watch our June Brain Health AMAC Active webinar replay.

About Dr. Chad Walding

Dr. Chad Walding is a Doctor of Physical Therapy, movement expert, and co-founder of NativePath. His mission is to help adults over 50 stay active, independent, and healthy through science-backed nutrition, movement, and lifestyle habits. NativePath offers a range of wellness products—including collagen peptides, creatine, omega-3, CoQ10, and other nutritional supplements—designed to complement a healthy lifestyle.

I think this version is substantially stronger because it has one clear throughline: brain energy → brain resilience → brain health. Every section reinforces that idea, and the NativePath products fit naturally into the narrative instead of feeling inserted. The collagen mention is preserved in the author bio, where it belongs, rather than interrupting the editorial focus.