Your brain starts declining earlier than you think | Dr. John Simon | More Life for Living Ep. 13

Think cognitive decline starts when you begin forgetting things? Think again.

Most people don't think about brain health until memory problems appear. But according to Dr. John Simon, processing speed and memory peak in your early-to-mid 20s and begin declining in your late 20s.

In this episode of More Life for Living, Dr. Simon - Founder & CEO of SimonMed and a radiologist with more than 30 years of experience - returns to explain why brain health is one of the core pillars of preventive care and why waiting for symptoms often means waiting too long.

Dr. Simon walks through what advanced brain MRI can reveal today, from gray matter and white matter health to functional MRI that shows the brain actively working. He also explains the connection between heart health, blood flow, and dementia, why blood pressure matters for your brain, and how sleep, exercise, and diet fit into a long-term plan.

The conversation also takes a candid look at how AI is changing brain imaging - and why a single "brain age" score or a clock-drawing test isn't enough to assess your cognitive health.

You'll learn:

• When cognitive decline actually begins - and why "normal for your age" isn't the goal
• The difference between gray matter and white matter, and why both matter
• What advanced brain MRI and functional MRI can show
• How blood flow and vascular health may be linked to dementia
• Why blood pressure matters for your brain
• Why a single blood pressure reading may not tell the whole story
• How sleep, exercise, and diet support long-term cognitive health
• Why traditional cognitive tests often detect problems too late
• How AI is changing brain imaging - and why baselines matter
• Why prevention should start in your 20s and 30s

Whether you're noticing changes or simply want to protect your brain for the decades ahead, this episode offers a practical look at how earlier detection may help you stay sharper for longer.

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Continue Your Brain Health Journey

Advanced brain MRI can help establish a baseline of your brain health and track changes over time - often long before symptoms appear.

Talk with your healthcare provider about your personal and family history, cardiovascular risk, and whether advanced brain imaging may be appropriate for you.

About More Life for Living

More Life for Living is SimonMed's preventive health podcast, featuring approachable conversations about prevention, early detection and the tools that can help people live healthier, longer lives.

About SimonMed

SimonMed is one of the largest outpatient diagnostic imaging and health technology providers in the U.S., operating more than 180 centers across 10 states with subspecialty-trained, board-certified radiologists.

SimonMed Longevity focuses on proactive health through whole-body MRI and advanced preventive screening designed to help individuals better understand their health and identify potential risks earlier.

Disclaimer

This podcast is for informational and educational purposes only and is not intended to replace professional medical advice, diagnosis, or treatment. Consult your healthcare provider regarding your individual health needs and medical decisions.