The Science Behind the Assessment
Meet Dr. EricBraverman
The neuroscientist who mapped your brain chemistry — and why we built Keto BrainZ around his work.
The Man & His Work
A Pioneer Who Asked a Different Question
Most of medicine asks: what disease do you have? Dr. Eric Braverman spent his career asking something more fundamental: what is your brain actually made of, and how is it running?
As founder of PATH Medical in New York City and one of the foremost integrative brain health physicians in the world, Braverman spent decades bridging neuroscience, nutrition, and clinical medicine. His landmark book, The Edge Effect, distills that work into a framework that is both scientifically rigorous and genuinely accessible — a rare combination in any field.
His core insight: every person has a dominant neurotransmitter that shapes their cognitive personality, and one or more deficient neurotransmitters that quietly undermine their performance, mood, focus, and resilience. The Braverman Assessment is the tool he developed to map this for real individuals — not through expensive tests or complex scans, but through the patterns in how you actually think, feel, and behave day to day.
We recommend his work not because it's convenient for us — but because it's genuinely useful. The more you understand your own neurotransmitter profile, the more intelligently you can support it. That's true whether you ever try Keto BrainZ or not.
The Four Systems
Your Brain Runs on Four Master Signals
Braverman identified four primary neurotransmitters as the master regulators of virtually everything you experience mentally and physically. Understanding them is the foundation of everything else.
Dopamine
Drive, motivation, and reward. Your dopamine system governs how much energy and initiative you bring to life. High dopamine types are goal-oriented, fast-processing, and pressure-resistant. Depletion shows up as fatigue, procrastination, and a loss of the drive that once came naturally.
Acetylcholine
Memory, learning, and creativity. Acetylcholine is the neurotransmitter of connection — it governs how quickly you learn, how well you retain information, and how fluidly you make creative leaps. Deficiency shows up as mental fog, slow recall, and a noticeable drop in creative output.
GABA
Calm, structure, and stability. GABA is your brain's primary inhibitory signal — the chemical that keeps the nervous system from running too hot. Strong GABA types are steady, reliable, and grounded. When GABA runs low, anxiety, restlessness, and an inability to truly switch off are the result.
Serotonin
Mood, connection, and sleep. Serotonin governs your emotional baseline — your capacity for contentment, connection, and genuine rest. High serotonin types are warm, present, and emotionally steady. Deficiency manifests as mood fluctuations, poor sleep, and a general sense that nothing quite satisfies.
What You'll Get From This
Three Things Worth Knowing About Your Brain
Whether you take our assessment, the full Braverman test, or both — here's what you're working toward:
01 — Your Current Neurotransmitter State
Which of the four primary neurotransmitters is dominant in your brain right now. This is your cognitive personality. It shapes how you lead, create, connect, and execute — and it's more fixed than most people realize.
02 — Where You May Be Deficient
Deficiencies are where the friction lives. Identifying which signals are running low gives you a map — not a diagnosis, but a direction. Low dopamine feels like procrastination. Low acetylcholine shows up as fog. Low GABA looks like anxiety. Low serotonin feels like instability. Naming it is the first step to addressing it.
03 — A Working Model of Your Own Brain Chemistry
Not textbook theory — a real, practical framework for understanding how these four systems interact in your daily experience. This is the kind of self-knowledge that actually changes how you make decisions about your health, energy, and performance.
The Bigger Picture
Your Neurochemistry Changes Throughout Your Life
This is the part most people never hear about. Your neurotransmitter balance isn't static — it shifts across your lifetime in response to hormonal changes, and those shifts are significant enough to change your dominant type, amplify deficiencies, and affect everything from energy to cognition to emotional stability.
Estrogen & Serotonin
Estrogen and serotonin move together. Rising estrogen — in puberty, during pregnancy — tends to support serotonin activity and mood stability. Declining estrogen during perimenopause and menopause is directly associated with serotonin drops, which is why mood disruption, sleep changes, and emotional sensitivity are so common during this transition.
Testosterone & Dopamine
Peak testosterone in early adulthood correlates with peak dopamine drive — motivation, confidence, competitive energy. As testosterone declines with age, dopamine output follows. The result: reduced initiative, slower recovery, and the kind of low-grade flatness that's often mistaken for depression.
Progesterone & GABA
Progesterone metabolizes into a compound that activates GABA receptors — it's one of the brain's built-in calming mechanisms. Drops in progesterone — premenstrual, postpartum, or during menopause — are a primary driver of anxiety, restlessness, and stress sensitivity.
Cortisol & All Four Systems
Chronic stress elevates cortisol, which over time depletes dopamine, serotonin, and GABA simultaneously. This is why sustained high-stress periods often produce the feeling that everything is running low at once — because it is. The four systems are not independent; they influence each other constantly.
Understanding where you are in your hormonal arc adds important context to your results. A 52-year-old woman and a 28-year-old man can both score high on serotonin deficiency for entirely different underlying reasons. The neurotransmitter picture is real in both cases — and the support strategies are the same.
Our Honest Recommendation
Go Deeper With Braverman
Our assessment is a solid starting point. The full Braverman test is a more complete picture. And The Edge Effect is one of the most practically useful books ever written about the human brain — it goes well beyond what any online assessment can deliver. We genuinely recommend both.
The information on this page is for educational purposes only and is not intended as medical advice. The Braverman Assessment is a self-awareness tool, not a clinical diagnostic. Always consult a qualified healthcare professional regarding your health and neurological wellbeing.
