Get new deals I come across here 🎁

Braverman Test: 100% FREE Neuroscience-Approved Personality Assessment

The Outliyr Difference

Bioharmonic View

10-50 hours of research go into researching the latest science and perspectives of ancient medical systems


Rigorous Testing

Personal experience with products, quantified with various lab-grade technologies

Expert Informed

Content created only after consultations with authors, PhDs, MDs, and world-class experts

This post may contain affiliate links, which means I receive a small commission if you make a purchase (at no cost to you). Usually, we partner with companies only after we've ranked each product. Thanks for your support!


Your brain is one of a kind.

I’ve tried personality tests. A lot of them. They spit out results seemingly applicable to any human with a heartbeat. The era of generic cookie-cutter recommendations is coming to an end.

If you’re interested in nootropics, smart drugs, or general brain health, look no further.

The free online Braverman assessment gives biohackers valuable insight into their unique brains. Click To Tweet

What makes the Braverman personality type assessment special?

You answer a detailed behavioral questionnaire that returns a fairly accurate snapshot of your brain’s chemical makeup (called neurotransmitters). From there you can optimize your diet, lifestyle, and supplementation. The Braverman test isn’t perfect, but it presents you with a good starting point.

Neurotransmitters Explained in Simple Terms

Neurotransmitters are brain chemicals that convey signals determining how we feel, think, and function. The primary four neurotransmitters are:

Scientists divide neurotransmitters into two classes: stimulating or sedating. Serotonin and GABA sedate, while acetylcholine, and dopamine stimulate.

Everyone has their own unique balance of neurotransmitters, and levels of each fluctuate throughout the day.

What is The Braverman Test?

braverman test

And it is more accurate and personalized than others.

Your results not only show your strengths, but deficiencies too. Correcting deficiencies can profoundly alter your brain chemistry for the better. Some people notice symptoms disappear and that their quality of life improves.

I discovered the Braverman Test through one of my favorite biohackers, Charles Poliquin. On the Tim Ferriss Show, in 2016, he explained how he uses the Braverman questionnaire to tailor his athletes’ training. Naturally, I gave it a go. I liked what I found.

The Braverman test is split into two sections:

  1. Dominant neurotransmitters (strengths)
  2. Deficient neurotransmitters (weaknesses)

In each section, you answer questions related to the specific neurotransmitters: dopamine, serotonin, GABA, and acetylcholine.

Dominant Neurotransmitters

braverman dominant neuro
The Braverman dopamine test.

You might already have a sense of your dominant personality qualities. Or maybe not.

I like confirming the results. There’s a narrow window of optimal neurotransmitter levels.

That’s right.

Higher neurotransmitters levels aren’t better.

You can use this to tailor your supplementation regimen. For people high in dopamine, that nootropic that boosts it further can lead to excessive risk-taking behaviors and impulsive actions. Braverman explains the downsides of excess.

Deficient Neurotransmitters

braverman deficiencies
I set up my lifestyle to address neurotransmitter deficiencies.

Braverman neurotransmitter deficiencies are the equivalent of personality “weaknesses”.

The tool calculates your results and interprets your neurotransmitter deficiencies. Deficiencies fall into four separate categories:

  1. Physical issues
  2. Personality issues
  3. Memory issues
  4. Attention issues

Eric also gives specific supplement and dosage recommendations tailored to your results. Do your own research though. I’ve heard very mixed results on the recommended dosages. Generally, begin with in the low-range, and slowly work up.

Disclaimer: always consult your doctor before starting a new supplement.

One of the more interesting applications of the assessment is its application to athletics.


You might wonder about the link between neurotransmitters and sports.

I know I did. Charles cleared it up on the Tim Ferriss show. Why listen to Charles?

In the sports world, he’s a big deal:

“[Charles] has trained elite athletes from nearly 20 different sports, including Olympic gold medalists, NFL All-Pro’s, NHL All-Stars and Stanley Cup champions, and IFBB bodybuilding champions”

Tim Ferriss

Charles introduced a new paradigm in his 2005 article called “The Five Elements“. As the name suggests, he integrated the principles of Traditional Chinese Medicine into the training programming of his athletes.

Accordingly, athletes have a particular “elemental type” corresponding to their personality. His greatest athletes accounted for neurotransmitter dominance in their training:

  • Dopamine athletes respond best to intensity.
  • Acetylcholine athletes respond best to variety.
  • Balanced neurotransmitters respond best to volume.
  • GABA and Serotonin types are unlikely to care about training.

Star athlete or not, the test does have a few drawbacks.

Downsides of the Test

Science evolves rapidly.

We now know that there are more than four neurotransmitters. The Braverman assessment only accounts for the large four. These less researched ones can affect you and your personality.

Self-reported data is notoriously inaccurate. Such is the case with questionnaires.

And there’s more to your personality than subjective behavior. For example, your gut microbiome plays a massive role in neurotransmitter production. Therefore, your gut contributes to your personality.

While better than most others, take Braverman results with a grain of salt.

How to Interpret & Use Your Braverman Results

Once you know your Braverman results, you’re ready to start testing some changes. There are two ways of finding what works for you:

interpret braveman results

After some trial-and-error, you’ll discover the things that actually work for you.

I barely batted an eye from my results. I intuitively knew most of these already:

Braverman Test Results
My Braverman test results.

Next, I use a website called SelfHacked to find supplements and lifestyle practices known to boost certain neurotransmitters. You can also check how your Braverman results compare to your cognitive DNA data.

Based on my report, this example shows the supplements and other things I can do to boost GABA. However, you can search the site and find similar articles for all neurotransmitters.

Braverman Acetylcholine Dominance:

I’m happiest when I’m learning. I’m borderline obsessed with things that challenge my beliefs. I get lots of choline from eating copious amounts of eggs. I’m very careful with acetylcholine boosters. Just a tad too much and I feel anxiety and paranoia — side effects of too much acetylcholine.

Braverman GABA Deficiency:

Again, no surprise. I’ve always had a hard time truly relaxing. I’m more “Type A” than I care to admit, even though it’s idolized by society. Recently I’ve focused heavily on improving emotional wellbeing, a side effect of low GABA. I do really well on supplemental GABA, melatonin, valerian root, passionflower, taurine, magnolia bark, and sometimes, Phenibut. I’m very cautious about my alcohol consumption since it is a powerful relaxer acting on GABA and therefore I have an especially high potential for addiction.

Other people I’ve recommended the test to mentioned similarly spot-on scoring.

Take The Free Online Braverman Test Today

Personality tester or not, spend five to ten minutes taking this one.

You’ll get results you can use to effectively tailor your diet, supplementation, learning, and lifestyle.

The results and recommendations aren’t too extensive, and it won’t replace all other tests. Given that it’s free, fast, and useful, Braverman personality typing deserves a spot in any biohacker’s toolkit.

What personality tests have you found useful?

Additional Resources

Nick Urban

Nick Urban is the Founder of Outliyr, an expert Biohacker of 10+ years, Data Scientist, Certified CHEK Practitioner, Host of the Mind Body Peak Performance Podcast, and a High-Performance Coach. Click here to read how Nick went from struggling pre-diabetic, to collegiate rugby national champion. If you want to send Nick a quick message, then visit his Contact Page.

10 thoughts on “Braverman Test: 100% FREE Neuroscience-Approved Personality Assessment”

    • Idem pour moi de même… où aller chercher les régles d’une interprétation claires de mes résultats – que veulent dire les calculs ex Nature :0 Dopamine ( est-ce que je n’est pas de neuro-transmetteurs favorables au sujet traité dans ce cas? ou autre interprétation?
      Merci de me guider.

      • Hi Chervet,

        Good questions! Those numbers show your current status (based on the questionnaire). I use the “dominance” scores to understand my clients’ personalities and where their natural strengths lie.

        I’d focus more on the “deficiencies” section. Simulating the areas with the highest deficiency score (via diet, supplements, and lifestyle) will bring you back closer to balance (and thus health).

        Of course, this isn’t medical advice but hopefully helps guide your research 🙂

  1. Why are there 40 questions for assessing GABA-deficency in the test, and only 24-25 assessing the other neuro transmitters? This will result in, if you give 50% true answers for all neurotransmitters in the deficendy section, the result will show up like you’re mostly deficient in GABA.

    Is there a thought behind this (something about the nature of GABA?), or is it some kind of oversight?

    • Excellent question. That’s a question best suited for Dr. Braverman. But I’d assume that it’s because GABA is the most complicated and nuanced neurotransmitter. As the chief inhibitory neurotransmitter, it takes more questions to accurately establish whether you have a true GABA deficiency or something else.


Leave a Comment

error: Alert: Content selection is disabled