Dementia Isn’t Inevitable: 5 Science-Backed Ways to Lower Your Risk

June is Alzheimer’s & Brain Awareness Month, so let’s get real: What if nearly half of all dementia cases didn’t have to happen? Science says they’re preventable, and it all starts with the habits you choose next.

Sure, age and genetics play a role. But lifestyle matters a lot. In fact, research shows that up to 40% of dementia cases worldwide may be preventable with simple changes to how we move, eat, and care for our brains.

Let’s review my five science-backed ways to reduce your risk of developing dementia and Alzheimer’s disease, starting now.

1. Move Your Body! Your Brain Will Thank You

Regular exercise doesn’t just strengthen your muscles; it supports your mind.

One extensive review found that consistent physical activity reduces your risk of any dementia by 28%, and Alzheimer’s specifically by 45%.

Movement boosts blood flow to the brain, promotes neuroplasticity (your brain’s ability to adapt and form new connections), and reduces inflammation.

Try this: Walk briskly for 30 minutes a day, take a dance class, or add strength training twice a week. Every step counts.

2. Eat Like Your Brain Depends on It (Because It Does)

Your diet fuels your brain, so feed it wisely. The Mediterranean and MIND diets (short for Mediterranean-DASH Intervention for Neurodegenerative Delay) have been shown to reduce the risk of cognitive decline. These diets focus on:

• Leafy greens, berries, and colorful veggies
  
  
• Whole grains, nuts, and olive oil
  
  
• Lean protein, like fish and legumes
  
  

Avoid: Ultra-processed snacks, sugary drinks, and high-sodium frozen meals.

Food is powerful. Think of every bite as brain fuel.

3. Keep Blood Pressure in Check

High blood pressure isn’t just bad for your heart; it’s bad for your brain.

It can damage tiny blood vessels that support memory and cognition, increasing the risk of both vascular dementia and Alzheimer’s.

Goal: Aim for a blood pressure below 120/80 mmHg. Regular checkups, exercise, a balanced diet, and stress reduction all help keep it in range.

4. Quit Smoking (Even “Occasionally”)

Smoking accelerates aging in nearly every part of the body, including your brain.

It restricts oxygen flow, shrinks brain tissue, and increases the risk of stroke and dementia. The good news? The brain is resilient!

Fact: Quitting smoking at any age can slow cognitive decline and reduce your future risk.

5. Rethink Alcohol: Less Is More

Heavy alcohol use is a well-known risk factor for dementia. While you may hear claims about red wine being brain-healthy, the research is mixed, at best.

Experts recommend no more than one drink/day for women or two for men, or ideally, less. Excessive alcohol contributes to brain atrophy, memory loss, and faster cognitive decline over time.

Bonus: This might be the perfect time to hop on the non-alcoholic trend. From mocktails to alcohol-free spirits, there’s never been a better (or cooler) time to give your brain a break.

Final Thoughts: It’s Never Too Late to Start

You can’t change your age or family history. But you can change your habits, and those changes add up. From movement and meals to mindset and medical checkups, every healthy choice you make is a step toward a stronger brain.

Let this month be your reminder: Dementia isn’t destiny. There’s power in prevention.

P.S. Want to show your brain a little extra love? Check out my brain-themed merch collection designed to spark conversation, support awareness, and rep neuro pride with style. Because protecting your mind never goes out of fashion.

About Dr. Betsy Grunch

Dr. Betsy Grunch is a board-certified neurosurgeon based in Gainesville, Georgia, known for her expertise in minimally invasive spine surgery and her commitment to delivering thoughtful, patient-centered care. A consistent recipient of peer-nominated Top Doctor honors from Georgia Trend and Atlanta Magazine through Castle Connolly, she recently founded her own practice, Southern Neurosurgery, dedicated to what she does best - putting patients first.

Beyond the operating room, Dr. Grunch is a leading digital voice in medicine, recognized by millions as @Ladyspinedoc. She has built a powerful personal brand rooted in clarity, connection, and trust - translating complex neurosurgical concepts into language patients and the public can truly understand.

Through her work, she emphasizes that being a great physician is not just about technical skill - but about listening, communicating, and showing up for patients in meaningful ways. Her platform educates, inspires, and empowers both patients and the next generation of healthcare professionals to rethink what it means to lead in modern medicine.

She is deeply passionate about inspiring future healthcare professionals to pursue medicine, while also mentoring healthcare professionals on how to build authentic, impactful brands that extend their voice beyond the bedside.