Dr. Daniel Amen, MD:
Rewiring Mental Health Through Brain Science

I’ve always been driven by trying to understand the brain and why people struggle with their emotions, focus, and behavior, but early in my medical training as a former infantry medic and later at Walter Reed Army Medical Center, I saw how often symptoms were treated without ever looking at the brain itself. I knew there had to be a better way to connect the dots sooner—one that used imaging, science, and a whole-person approach to uncover what was really happening beneath the surface. That search led me to psychiatry focused on brain health and eventually to building a career rooted in measurement, prevention, and personalized care.

Today, as a psychiatrist, author, and founder of Amen Clinics, I bring together brain imaging, clinical medicine, and education to help translate complex neuroscience into practical action. Much of my work is shaped by what I’ve learned from nearly 300,000 brain scans—and from being a father and grandfather who cares deeply about the next generation’s mental wellbeing.

As Visiting Faculty in The Health Coach Training Program^™ at IIN, I teach the BRIGHT MINDS framework and a functional approach to brain health to support health coaches in building trust, clarity, and confidence—so they can help clients feel seen, empowered, and capable of lasting change.

Q&A: Dr. Daniel Amen, MD.

YOU HAVE ANALYZED NEARLY 300,000 BRAIN SCANS. WHAT IS THE SINGLE MOST SURPRISING THING YOU HAVE LEARNED ABOUT HOW THE BRAIN ACTUALLY WORKS THAT MOST PEOPLE, INCLUDING MOST DOCTORS, GET COMPLETELY WRONG?

A: The biggest surprise is that mental health problems are often brain health problems first. Most people—even many physicians—still diagnose anxiety, depression, ADHD, addiction, or memory issues based almost entirely on symptoms, without ever looking at the organ involved. Psychiatry is the only medical specialty that rarely looks at the organ it treats.

After studying nearly 300,000 brain scans, one thing became crystal clear to me: when your brain works right, you work right. When your brain is troubled—for any reason—you’re much more likely to struggle emotionally, cognitively, physically, and relationally.

I’ve seen depression caused by traumatic brain injuries, anxiety triggered by inflammation, memory loss linked to poor blood flow, and “treatment-resistant” mood disorders that were actually related to toxins, hormone imbalances, infections, or sleep apnea. Too often, people are told they are weak, lazy, broken, or “just stressed,” when in reality their brain is crying out for help.

The hopeful news is this: your brain is not fixed. It can change, heal, and improve. Your brain’s history is not your destiny.

YOU FAMOUSLY SAY MENTAL HEALTH IS BRAIN HEALTH. FOR SOMEONE WHO HAS BEEN STRUGGLING WITH ANXIETY, LOW MOOD, OR BRAIN FOG AND HAS TRIED THE TRADITIONAL ROUTES WITHOUT RESULTS, WHAT IS THE FIRST THING YOU WOULD ACTUALLY LOOK AT?

A: I would first ask: What is stealing your brain health?

Symptoms like anxiety, low mood, irritability, fatigue, or brain fog are not diagnoses. They are signals. The key is identifying the underlying causes.

At Amen Clinics, we use the BRIGHT MINDS framework to evaluate the major risk factors that hurt the brain. BRIGHT MINDS stands for B for blood flow issues, R for retirement and aging, I for inflammation, G for genetics, H for head trauma, T for toxins, M for mental health issues and chronic stress, I for infections, neurohormone imbalances, D for diabesity (diabetes and/or obesity), and S for sleep problems.

One of the first places I look is sleep and inflammation. If someone is sleeping poorly, eating ultra-processed foods, drinking too much alcohol, consuming excessive sugar, or living under chronic stress, the brain simply cannot function optimally.

I also always ask about hidden brain injuries. Many people dismiss past concussions from sports, falls, car accidents, or domestic violence, but mild head trauma is a major contributor to anxiety, depression, ADHD symptoms, and memory problems later in life.

Before labeling someone, I want to understand their brain.

MOST PEOPLE THINK THEIR HABITS AFFECT THEIR BODY. YOU WOULD SAY THEY ARE AFFECTING THEIR BRAIN FIRST. WHAT ARE TWO OR THREE DAILY HABITS THAT ARE QUIETLY DOING THE MOST DAMAGE TO BRAIN FUNCTION THAT PEOPLE HAVE NO IDEA ABOUT?

A: The first is chronic consumption of ultra-processed foods and sugar. Food is either medicine or poison for your brain. Highly processed, high-glycemic foods increase inflammation, destabilize blood sugar, shrink the brain over time, and raise the risk for depression and dementia.

Second is chronic stress combined with negative thinking. Your thoughts matter. Every thought sends chemical messages through your brain and body. Automatic negative thoughts—what I call ANTs—create stress chemistry that damages the brain’s memory and emotional centers over time.

Third is sleep deprivation. Sleep is when the brain cleans and repairs itself. During deep sleep, your brain literally washes out metabolic waste products. Poor sleep is associated with anxiety, depression, obesity, cognitive decline, and Alzheimer’s disease.

I would also add alcohol to the list. Society markets alcohol as sophisticated, relaxing, and even healthy. But brain imaging tells a different story. Alcohol decreases blood flow and is directly toxic to brain tissue.

HEALTH COACHES WORK WITH CLIENTS EVERY DAY ON FOOD, LIFESTYLE, AND BEHAVIOR CHANGE. WHAT DO YOU WISH MORE COACHES UNDERSTOOD ABOUT THE BRAIN-BODY CONNECTION THAT WOULD MAKE THEIR WORK SIGNIFICANTLY MORE EFFECTIVE?

A: If a client has low activity in the prefrontal cortex—the part of the brain responsible for focus, judgment, and impulse control—they may genuinely struggle with consistency, planning, or follow-through. If someone has an overactive anxiety circuit, stress may drive emotional eating or self-sabotage.

Too often people blame themselves morally for struggles that are actually rooted in brain dysfunction.

The brain and body are inseparable. Blood sugar instability affects mood. Gut inflammation affects cognition. Sleep affects decision-making. Trauma affects metabolism and cravings. Coaches who understand this become dramatically more compassionate and more effective.

I also encourage coaches to think in four circles: biological, psychological, social, and spiritual. People get sick and well in all four areas. When you support all four, transformation becomes much more sustainable. also makes change more sustainable, ensuring that progress is lasting rather than temporary.

YOU HAVE WORKED WITH EVERYONE FROM NFL PLAYERS TO TRAUMA SURVIVORS TO HIGH-PERFORMING EXECUTIVES. IS THERE A PATTERN YOU KEEP SEEING ACROSS ALL OF THEM WHEN IT COMES TO BRAIN HEALTH THAT MOST PEOPLE OVERLOOK?

A: Yes. High performers often ignore brain health until they are in crisis.

I see executives who are wildly successful professionally but are exhausted, anxious, disconnected from their families, sleeping five hours a night, living on caffeine and stress, and wondering why they feel burned out or unhappy.

I also see that unresolved trauma is incredibly common across every population. Trauma changes the brain. Whether it’s emotional trauma, chronic stress, neglect, violence, or repeated hits to the head, the brain adapts in ways that can later show up as impulsivity, anxiety, depression, addiction, or relationship problems.

Another overlooked pattern is loneliness. Human connection is a biological need. Isolation increases stress hormones, inflammation, and the risk of cognitive decline. The healthiest brains are usually connected brains.

WHEN IT COMES TO NUTRITION AND THE BRAIN, WHAT IS ONE THING THE MAINSTREAM WELLNESS WORLD IS GETTING RIGHT, AND ONE THING IT IS COMPLETELY WRONG ABOUT?

A: The wellness world is finally getting one major thing right: food profoundly affects mood, energy, focus, and cognitive performance. We now have strong evidence that nutrient-dense diets rich in healthy fats, colorful vegetables, clean protein, omega-3 fatty acids, and polyphenols support brain health.

Where I think wellness culture goes wrong is glamorizing extremes and treating everyone the same.

There is no one perfect diet for every brain. Some people thrive with intermittent fasting; others become anxious or hypoglycemic. Some do well on a high-protein diet while others feel irritable and overfocused. Brain health should be personalized.

I’m also concerned about the normalization of substances that hurt the brain—especially alcohol and marijuana. Just because something is culturally accepted does not mean it’s healthy for your brain.

HOW ARE HEALTH COACHES UNIQUELY EQUIPPED TO SUPPORT THEIR CLIENTS WITH BRAIN HEALTH, AND WHAT MAKES THIS SUCH A VALUABLE AREA FOR COACHES TO SPECIALIZE IN?

A: Health coaches are uniquely positioned because real brain health change happens in daily habits, not in occasional doctor visits.

You cannot meditate once, eat one salad, or sleep well for two nights, and expect lifelong results. Brain health is built through consistent daily practices.

Health coaches help people create those practices—better sleep routines, healthier food choices, exercise habits, stress management, social connection, and mindset shifts. They also provide accountability, encouragement, and hope, which are incredibly healing.

This is a valuable area to specialize in because the world desperately needs it. Rates of anxiety, depression, ADHD, obesity, addiction, and dementia are rising. People are hungry for practical strategies that help them feel mentally clear, emotionally stable, and cognitively strong.

The future of healthcare must include prevention and brain optimization—not just crisis management.

WHAT DO YOU THINK THE NEXT FRONTIER OF BRAIN HEALTH WILL BE, AND HOW CAN HEALTH COACHES START PREPARING FOR IT NOW?

A: The next frontier is personalized brain health.

We are moving toward a future where imaging, genetics, biomarkers, wearable technology, nutrition, sleep data, and lifestyle medicine come together to create individualized brain optimization plans.

I also believe we will see much more attention placed on inflammation, metabolic health, the gut-brain connection, hormone balance, and environmental toxins as drivers of mental health symptoms.

Health coaches can prepare now by becoming students of neuroscience, nutrition, behavior change, trauma-informed care, and metabolic health. Learn how sleep affects the brain. Learn how blood sugar affects mood. Learn how chronic stress changes the nervous system.

Most importantly, help clients understand that brain health is not just about avoiding disease. It’s about creating energy, resilience, clarity, purpose, and joy.

IF SOMEONE READING THIS COULD DO JUST ONE THING TODAY TO BETTER SUPPORT THEIR BRAIN, WHAT WOULD YOU RECOMMEND?
A: Fall in love with your brain.

People protect what they love. When you truly care about your brain, you begin making different decisions. You ask yourself, “Is this good for my brain or bad for it?”

That one question can change your life. Today, do one brain-healthy thing:

Take a walk.
Eat a healthy meal.
Go to bed earlier.
Drink more water.
Call someone you love.
Practice gratitude.
Turn off the news for an evening.

Small daily actions create massive change over time.

WHAT IS YOUR PERSONAL FAVORITE MINDFULNESS OR BRAIN HEALTH PRACTICE, AND WHY DOES IT WORK FOR YOU?

A: One of my favorite practices is a simple gratitude and positivity exercise I do every day.

In the morning, I begin with the thought: “Today is going to be a great day.” At night, I ask myself: “What went well today?”

This trains the brain to notice what is right rather than constantly scanning for what is wrong. The brain naturally has a negativity bias because it was designed for survival, not happiness. But you can train it toward a more balanced and hopeful perspective.

I also love diaphragmatic breathing and short meditations because they calm the nervous system, increase activity in the prefrontal cortex, and reduce stress chemicals.

The key is consistency. Tiny habits practiced every day can literally change the structure and function of your brain over time. And with a better brain comes a better life.