Brain Health & Ageing in Sunbury & Melton – Can Exercise and Diet Prevent Cognitive Decline?

Brain Health & Ageing – Can Exercise and Diet Prevent Cognitive Decline?

About the Author

Dr Julian Simpson is an Australian chiropractor with over 15 years of experience in musculoskeletal healthcare and rehabilitation.

He is a Board Member of the Chiropractic Australia Research Foundation and has reviewed and written more than 800 evidence-based health articles focused on spinal health, rehabilitation, sports injuries and conservative care approaches.

His treatment focus includes:

• Chiropractic adjustments

• Sports chiropractic

• Massage therapy

• Shockwave therapy

• Laser therapy

• Non-surgical spinal decompression

Dr Simpson provides patient care through Healthwise Chiropractic, serving communities including Sunbury, Melton, Diggers Rest and surrounding regions.

Maintaining brain health as you age is strongly linked to lifestyle. Research shows that combining regular exercise with a healthy diet can significantly improve overall cognitive function and may help slow age-related cognitive decline. At Health Wise Chiropractic in Sunbury & Melton, we help patients support long-term brain and nervous system health through movement, lifestyle advice, and personalised care.

🟨 WHAT IS AGE-RELATED COGNITIVE DECLINE?

Cognitive decline refers to the gradual reduction in:

• Memory

• Focus and attention

• Processing speed

• Decision-making ability

While some changes are a normal part of ageing, more significant decline can progress to mild cognitive impairment (MCI) or dementia.

Globally, over 55 million people are affected by dementia, making prevention strategies more important than ever.

🟧 WHAT CAUSES COGNITIVE DECLINE?

There isn’t a single cause—it's usually a combination of lifestyle and biological factors:

• Physical inactivity

• Poor nutrition

• Chronic inflammation

• Reduced blood flow to the brain

• Loss of muscle mass with age

• Low levels of brain-supporting chemicals

The good news? Many of these are modifiable risk factors.

🟦 WHAT DOES THE LATEST RESEARCH SHOW?

A large systematic review and meta-analysis of 14 clinical trials (over 4,000 adults aged 65+) found:

✅ Exercise + Nutrition Combined:

• Significantly improved overall cognitive function

• Helped maintain brain performance over time

❌ But:

• No strong improvements in specific areas like:

  • Executive function (planning, multitasking)

  • Visual processing

🧠 Key Insight:

Even small improvements are clinically meaningful, because ageing naturally leads to decline.

👉 In simple terms: It’s not about boosting your brain—it’s about slowing the decline.

🟩 WHY DO EXERCISE AND DIET WORK TOGETHER?

🧠 1. Boosts Brain Repair (BDNF)

Exercise increases a key brain chemical called BDNF (Brain-Derived Neurotrophic Factor), which helps:

• Grow new brain cells

• Strengthen neural connections

• Improve memory

A nutrient-rich diet (especially omega-3s and antioxidants) enhances and prolongs this effect.

💪 2. The Muscle–Brain Connection

Your muscles release substances called myokines during exercise that:

• Cross into the brain

• Support memory and learning

• Help protect against neurodegeneration

👉 This is why strength training + adequate protein intake is essential as we age.

🔥 3. Reduces Inflammation

• Chronic inflammation accelerates brain ageing

• Exercise creates an anti-inflammatory response

• Nutrition lowers baseline inflammation

Together, they create a brain-protective environment

🟨 BEST TYPES OF EXERCISE FOR BRAIN HEALTH

The research included a mix of programs, but the most effective approach was:

✔️ Combination Training:

• Resistance (strength) training

• Aerobic exercise (walking, cycling)

• Balance and coordination work

📅 Ideal Weekly Targets:

• Strength training: 2–3x per week

• Aerobic activity: 150+ minutes per week

🟧 WHAT SHOULD YOU EAT FOR BRAIN HEALTH?

The most effective dietary patterns included:

🥗 Mediterranean / MIND Diet Principles:

• High intake of vegetables, fruits, and berries

• Whole grains and legumes

• Fish (2–3 times per week)

• Healthy fats (olive oil, nuts)

• Reduced processed foods and sugar

💊 Supplements Studied:

• Omega-3 fatty acids

• Vitamin D

• Protein

• Creatine

• Multivitamins

⚠️ Important: There is no single “best supplement”, and results vary depending on the individual.

🟦 HOW CHIROPRACTIC CARE CAN SUPPORT BRAIN HEALTH

At Health Wise Chiropractic, we take a whole-body approach to ageing and cognitive health.

We help support:

• Healthy nervous system function

• Movement and mobility

• Posture and spinal health

• Exercise guidance and progression

• Lifestyle and recovery strategies

Your brain and body are deeply connected—movement is medicine for both.

🟩 WHEN SHOULD YOU SEEK HELP?

You should consider an assessment if you notice:

• Memory lapses becoming more frequent

• Reduced concentration

• Slower thinking or reaction time

• Decreased balance or coordination

• Reduced physical activity levels

Early intervention is key to maintaining independence and quality of life.

🟨 FINAL THOUGHTS

The research is clear:

👉 Exercise or diet alone helps—but together, they are far more powerful

While the improvements may seem small, they represent something critical:

🧠 Slowing brain ageing and preserving function over time

👉 Book online here:

Reviewed by Dr Julian Simpson, Chiropractor at Health Wise Chiropractic, Sunbury 21 Powellet Street, Sunbury & 131 Wembley Avenue, Strathtulloh

reference

Castillo-Bernad S, Moradell A, Gómez-Bruton A, Matute-Llorente Á, González-Agüero A, Casajús JA, Gómez-Cabello A, Lozano-Berges G, Vicente-Rodríguez G. Effectiveness of exercise and nutrition interventions for cognitive function in older adults: A Systematic Review and Meta-analysis. Mech Ageing Dev. 2026 Apr 16:112183. doi: 10.1016/j.mad.2026.112183. Epub ahead of print. PMID: 41999780.