Print Topic - Archive

BTD Forums  /  The Encyclopedia/ D'Adamo Library  /  The Type O Personality hypothesis
Posted by: Eric, Saturday, January 18, 2014, 4:57pm
I understand I'm introducing an emotional can of worms, but it's intended to be objective and non-inflammatory.  I want to know if anyone else who observes blood types and personalities has found this same phenomenon, and what it could possibly mean.

It seems like a lot (dare I say most) type Os who are not following a proper diet have a mental function that I can only describe as a broken record.  Having dated a lot over the last 7 1/2 years since starting BTD and now living with my brother's family (3 small girls and wife... all type O) it's becoming ever more apparent.  I can almost immediately tell apart an O from an A woman (not gender-dizing here.  As a heterosexual male, most of my social interactions are with females) by the way their brain works.  Here's a scenario:

My mother (Type O) is a people pleaser, as made demonstrable by her social interactions.  She never contradicts anybody, and only aims to agree and make friends.  If she does disagree with somebody, she'll laugh and talk faster and try to change the subject but will never confront an opposing opinion.  I have a good friend, on the other hand (type A), who loves to engage with people of different philosophies, mentalities, ideologies, but does so with 100% humility and respect.  He's an atheist who sits down with a preacher for lunch every Saturday and goes at deep religio-philosophical issues, almost always disagreeing, but never resorting to ad hominem or distasteful methods for expressing his disaccord.  They remain good friends, even though they have nothing in common.  He likes to explore other world views, without having his own affected.  However, if somebody like my mother were to try this, she would have an aneurysm as a result of the mental/social strain and cognitive dissonance.  She is either in full-on "best friend" mode, or "you're the enemy" mode.

What I'm trying to illustrate is a sort of brain wiring that I can't decide whether is inherent in some blood or other genetic "type", or something is a result of poor/proper nutrition.  So:

My mother's brain is wired to work fast.  She can come up with a quip in an instant, or a programmed (and that's a key word) response in a conversation with a total stranger without even thinking.  She has speed, but lacks depth.  I cannot sit down with her and discuss anything at a deeper level than just merely chit-chat, as she seems to struggle and get frustrated with higher-level thought processes or abstract meanings.  I realize this sounds terrible, but I'm not insulting her by any means.  My good friend in the previous example, however, is the complete opposite.  He may take longer to process a quip or react to a social stimulus, but he can speak about ideas in profound depth.  He's also a phenomenal writer.  His words don't circle around or sound confused.  You can tell his mind is better at unfolding a "big picture" and lays out an eloquent structure from beginning to end.

Now what I mean by broken record.  I have a 5yr old and 3yr old niece (Type O) who get a hold of a catch phrase, and that's all they repeat day and night.  Sometimes the catch phrase changes, but it's etched into their mind almost as a crutch for conversation.  Granted they're children, so it's not any kind of problem or condition.  But when adults act the same way, I can't help but become suspicious.  On the other hand, my niece-in-law(?) who's a type A is the sweetest, most calm and pensive little person I've ever met.  She creates, draws, writes, and converses on an entirely different level than my blood nieces.  She doesn't run around screaming and repeating what she hears at school.  She genuinely thinks and comes up with original content for herself.  One last story:

I dated a girl in New Jersey for a few weeks who epitomized what I saw as 'The Broken Type O'.  Of course she ate terribly, and didn't mind her nutrition.  She has bi-polar disorder and takes medication.  Extremely overreactive and very passionate.  But the point being in how she interacted.  If I said something funny, she would demand that I repeat that funny thing over and over again, sometimes for days.  Everything that we did became an instant "meme", and it etched into her mind like a broken record.  She would literally repeat things to me over and over until I thought she was mentally ill (aside from having bi-polar).  It was absolutely ridiculous, but it's what made her her and all of her friends loved her for it, and it apparently hasn't affected her career because she just got promoted.

So what's sad is I see so much of that girl in my nieces and my sister-in-law.  And I can't help but wonder if this is strictly a Type O thing.  The meme-creating, phrase-repeating, banter-generating, repeat-story-telling shenanigans of a frustrated, inflamed brain.  

I know from my own experience that wheat, dairy, or otherwise eating poorly absolutely deteriorates my mind.  I see so much of my former self in these people I'm describing, which is probably why I'm so affected by it.  It's also why I feel somewhat entitled to starting this conversation.  If I'm pointing fingers, I'm only pointing them at myself.

I'm not saying Type As or Bs or ABs have better brains than O's.  In fact, I bet all of our cognitive abilities (though different) would be more or less on par given the same nutritional, etc. opportunities.  A level playing field, so to speak.  What I'm suggesting is that in the face of poor nutrition and stress, the Type A may have an upper-hand.  They may die quicker of heart disease, but they'll do so without losing their mind.  

At least that's what I think.
Posted by: Lloyd, Saturday, January 18, 2014, 5:15pm; Reply: 1
Quoted Text
And I can't help but wonder if this is strictly a Type O thing.  The meme-creating, phrase-repeating, banter-generating, repeat-story-telling shenanigans of a frustrated, inflamed brain.  


It's not.
Posted by: Eric, Saturday, January 18, 2014, 5:17pm; Reply: 2
I've met plenty of "Type A personality" Type As who act very similar.  I mean statistically.  Seems like you find far more O's with sick brains.

edit: I realize I did say "strictly a Type O thing".  I guess that inquiry still stands regarding the phrase-repetition.  But regarding a generally 'shallow' mental type, of course you can find that across the board.
Posted by: Lloyd, Saturday, January 18, 2014, 5:25pm; Reply: 3
Quoted from Eric
I mean statistically.  Seems like you find far more O's with sick brains.


It's possible. The multiple of anecdote is anecdotes. To be statistically relevant you would want to compile facts in a controlled fashion.

Posted by: Lola, Saturday, January 18, 2014, 5:26pm; Reply: 4
yup!
that gut/brain axis gets us everytime!!!  ha :)

no matter which BT/GT
Posted by: Lloyd, Saturday, January 18, 2014, 5:31pm; Reply: 5
Quoted from Eric


edit: I realize I did say "strictly a Type O thing".  I guess that inquiry still stands regarding the phrase-repetition.  But regarding a generally 'shallow' mental type, of course you can find that across the board.


I think you will find phrase repetition across the board too.

Human behavior may have tendency that falls to a degree by blood type. But so much is cultural, even from region to region as well as broadly speaking, that getting a statistical confirmation would require a carefully built data set.
Posted by: Eric, Saturday, January 18, 2014, 5:38pm; Reply: 6
Interesting.  I just know that Type O and dopamine have a complicated relationship, so it makes me wonder if repeating a phrase, etc. causes a small dopamine release.
Posted by: Amazone I., Saturday, January 18, 2014, 8:25pm; Reply: 7
cherido mio  son of my soul :-).. you seem to confond a lot... :o :-/ ::)...

distinguish please pattterns, habits etc... well described in the books of Prof.Keirsey's *Pygmalion project* and then please compare to and with instructions of the enneagram of Don R.Riso & Russ Hudsons?s *wisdom of the enneagram*
...don't pluge into*being the victim*... :-/

for further infos..and discussions.. please don't hesitate to contact me or write :-)

hugs from yours amiga Isa
Posted by: Eric, Sunday, January 19, 2014, 1:56am; Reply: 8
Thanks Isa, maybe some of that was me subconsciously trying to vent, as I'm not in an ideal living situation and I'm constantly surrounded by stress.  I have discovered as well that I'm what you call a Highly Sensitive Person, and am learning that I absorb and process more than most people.  Sometimes it gets a little overwhelming feeling, hearing, smelling, thinking... so much.
Posted by: Possum, Sunday, January 19, 2014, 2:03am; Reply: 9
Fascinating thread topic Eric 8)!! Very interesting - will follow and maybe also comment later... ;-)
Posted by: Mrs T O+, Sunday, January 19, 2014, 2:44am; Reply: 10
Interesting....
I do suspect that Os who don't keep their diet may be more obnoxious.
I remember working with a gal who said she was an O but a vegetarian. She acted like the landlord was wrong when I think she might have been.  I think they moved a lot & I suspect they might have been the type to skip out on the rent.  She also was fired for strealing from the cash register.  I think there are other examples, but this one sticks out.
I think that Os have several personality types. They can be loud & shallow, or they can be strong cold leaders.
I first read that As were quiet & didn't finish tasks. However, I know As that have one or the other of those traits, but not both. There are many that have excellent work habits, but are backward or quiet socially. Then there are As that are more open, but have poorer work habits.  As I get to know some of them, I see that they are more introspective which goes with the trait that they internalize stress.
Each type is so complex that I find it hard to stereotype people. I try to guess types, but often am wrong. I guess the few As that are active & loud are the Warrior genotype, so there are no absloutes for each blood type.
Appearance & health may have more bearing on the type than personality.
Posted by: Adopted4, Sunday, January 19, 2014, 3:50am; Reply: 11
I have 3 O's in my family, not including my mother and some siblings. My husband and 2 daughters are type O and my sons are type B. What you described above sounds far more characteristic of my B sons than my type O's. We have all been following our blood type/SWAMI diets for about 2 years.

I can tell you for certain that my husband and older daughter (age 10) are not "shallow thinkers". They are very perceptive and generally get "the big picture" in most situations. They can engage in complex, philosophical discussions easily and they both love being mentally challenged. They love games such as scrabble, monopoly, mindtrap, and scattergories. They never back down from a mental challenge, whereas my sons and I don't thrive on such intellectually deep discussions or activities. I can't really comment too much on my younger type O daughter because of her multiple disabilities and the fact she was only adopted 2 years ago. She is a bit like you hypothesized, like a "broken record" who dwells on many of the same things day in and day out. However, that likely has more to do with the fact that her vocabulary is still limited due to her language acquisition as well as her dyslexia which makes language processing more challenging than most. Let me say that she sometimes surprises us in her ability to "read" a situation that many would not see or simply overlook. Once in Sunday School she gave up her chair for a child that walked in late because she thought he had no place else to sit even though the teacher was pulling up an extra chair behind her where she couldn't see. She LOVES television involving drama such as CSI and she watches closely how the actors interact with each other as well as how evidence is analyzed in the crime lab. Her face mimics the emotions displayed by the actors and she doesn't lose interest easily even though I know she won't understand a lot of the spoken language. Typical PBS children's shows and cartoons bore her and don't seem to stimulate her brain.  

I know this post is long, but let me add that I do believe that my sons and younger daughters orphanage life impaired how their brain process language/information. Some may refer to it as "cortisol poisoning" as orphanage life is stressful for any child in the best of circumstances. Excess cortisol interferes with a developing brain as well as a child's growing body, which is why young orphans are usually so small early in life. Perhaps excess cortisol early in life is partially responsible for the phenomenon you're describing above.
Posted by: Eric, Sunday, January 19, 2014, 4:31pm; Reply: 12
Excellent points.  I do think it is a stronger correlation with GenoType than blood type.  Maybe the Hunters are more likely to be the type of O I'm describing.  Gatherers are very different in my experience.  And Teacher vs. Warrior is similar.  Don't have enough B friends to recognize a pattern.

And I think you're absolutely right Coleen.  Cortisol is crippling; even more so to a developing brain.  I know that, as a sensitive person in a large, loud, and non-sensitive family, I had a lot of stress during my adolescent years.  I like being around crazy for a little while because it's oddly comforting, but I can't deal with it for too long and prefer to spend most of my time with the calm/quiet.
Posted by: Amazone I., Sunday, January 19, 2014, 7:30pm; Reply: 13
cherido mio... how would I be able to help ya outta misery ??) And do you think you're an introvert NF-type by naming yourself a so called *hsp* ??).....


:K) from yours amiga Isa (smile)

p.s.

I observed a lot of my 0-male- clients are... or no 3 in the enneagram, 6, 7 but almost 8ths

and some even no 1 of the enneagram...0-. women have almost tendencie to: no 2-3-4 but almost 7 and 9... of the enneagram... :)..
Posted by: ruthiegirl, Sunday, January 19, 2014, 10:04pm; Reply: 14
My type B son can be very repetitive like you describe in the Os you know.

I've never had a problem engaging in meaningful conversations, or had that "cognitive dissonance" you describe in your mother, not even when I was a "potato,corn, and wheat eating vegetarian." I've always been open to all views and I had some wonderful conversations about religion and politics (with people of other religions or different political persuasions) while I was eating so horribly for my type. Diet wise, I'd met the "ethical vegetarians" and the "rugged meat and potato types" so there really wasn't anything to challenge those particular beliefs during that time.

Just looking at my own children, you can completely disregard any kind of blood type-personality connection. My younger two children are very much like each other, and like me, while my oldest is the "white sheep of the family." She's much less passionate and more sensitive. The 3 of us will "blow up" over nothing, but then it "blows over" and we're fine a few minutes later, while Leah's still seething over the "lack of harmony" days or weeks later. It caused a lot of tension.

In any case, I would have guessed that me, Jack, and Hannah are all the same type and Leah is a different blood type, but in reality the 3 of us ladies are Os and Jack is a B. No real explanation as to why Leah (also an O) is so different from us, or why Jack (not an O) is so similar. Hannah's a mini-me.

Of  course, a sample size of 4 is not enough to prove or disprove any blood type-personality hypothesis. But it's MY experience, and that makes it hard for me to see the validity. I can read the descriptions and still just can't seem to place my family members into it. The "simplest explanation" is that Leah is the anomaly; she's the one who doesn't fit the "mold" while the rest of us are closer to what's typical. She's much more A-like in personality.
Posted by: battle dwarf, Sunday, January 19, 2014, 11:28pm; Reply: 15
I have also noted some of the things you describe but I also note that some of the A's (all eating horribly for their type) tend to be combative when eating thing they should not. my best exsample was also a bi-polar female. I could tell she had eaten beef before I had to work with her by they way everything you said was a critical comment about her, even if it was not about her nor meant to be critical in any fashion.
I have also noticed a corilation between O's of any gender and too many carbs in the diet. most of them seem to be in a 'brain fog' and have problems holding onto ideas and there for will repeat them over many times in an effort to retain it. the carbs also do not keep them full so they become hungry and often agitated for much of a low protean day. now, by agitated I do not neccisarily mean angry just lacking focus and energy or directing energy into inapropreit behaviors.
I used to ask my co-workers what they ate before work (if I knew their blood type) as a working test to see if it held true. it was funny (to me) that it was true EVERY time. granted I knew these people and could almost swami each of them based on changes in their personalities based on what they had eaten that day but if we knew everybody that well I feel confident that it would hold true even then.
I also know what you mean about the sensory thing. I was often asked to track down errant smells at work because I seemed to be the only one who could identify and track them down to their sourses.
Posted by: Amazone I., Monday, January 20, 2014, 4:58pm; Reply: 16
I merely think that Dr- D. described us to the finest in lr4yt...and tendencies are shown up for all b-types .... ;D
Posted by: Patty H, Tuesday, January 21, 2014, 1:51am; Reply: 17
I, personally, think we are wired not just by our blood type, but also by our genetics, which are individual for every O, A, B & AB, but also, and maybe more importantly, by our family of origin.

I believe we learn how to be in relationships by observing our parents.  Having been married for 28+ years, I see A LOT of my mother-in-law in my husband when it comes to how he behaves/reacts in relationship.  I am certainly no expert, but I have read a lot on this topic.  I believe that blood type is just one of the many contributing factors, but I believe that family of origin plays a much bigger role in this.  Just my humble opinion.
Posted by: Possum, Tuesday, January 21, 2014, 2:01am; Reply: 18
Quoted from ruthiegirl
... my oldest is the "white sheep of the family." She's much less passionate and more sensitive. The 3 of us will "blow up" over nothing, but then it "blows over" and we're fine a few minutes later, while Leah's still seething over the "lack of harmony" days or weeks later. It caused a lot of tension.
No real explanation as to why Leah (also an O) is so different from us, or why Jack (not an O) is so similar. Hannah's a mini-me.

The "simplest explanation" is that Leah is the anomaly; she's the one who doesn't fit the "mold" while the rest of us are closer to what's typical. She's much more A-like in personality.
Could she be an Explorer? I can't remember if you have ever talked about your thoughts re possible genotypes in your children?!

Posted by: PCUK-Positive, Tuesday, January 21, 2014, 2:27am; Reply: 19
On the other hand, my niece-in-law(?) who's a type A is the sweetest, most calm and pensive little person I've ever met.  She creates, draws, writes, and converses on an entirely different level than my blood nieces.  She doesn't run around screaming and repeating what she hears at school.  She genuinely thinks and comes up with original content for herself.

This sounds like my daughter who is 7 and blood type O.

I have found that a lot of things correlate to blood type but the water muddies a bit as i have been wrong about some people that i thought acted like A's but turned out to be O's albeit in a lot of cased one of their parent or both were blood type A's obviously Ao's
Posted by: ruthiegirl, Tuesday, January 21, 2014, 2:49am; Reply: 20
Quoted from Possum
Could she be an Explorer? I can't remember if you have ever talked about your thoughts re possible genotypes in your children?!


When I measured her and looked at the charts in the back of the GTD book, I got Gatherer for her, but SWAMI pro said Explorer.

Hannah is almost definitely an Explorer too. She's way too "solid" to be a Hunter, and the finger lengths are backwards for Gatherer.
Posted by: Possum, Tuesday, January 21, 2014, 5:47am; Reply: 21
;-)
Posted by: san j, Wednesday, January 22, 2014, 4:16am; Reply: 22
While I've been interested in Blood Type / Personality correlations, I've always found these to be temperamental, a matter of reactivity, for instance, rather than fine points of Personality, per se.

For instance: The O/Anger-Aggression; A/Anxiety-Worry stress-reactions being strongest.
I also found a correlation between minority Blood Types (B or AB) and nonconformity-tendencies.
See Sante's blogs in the Blood Type Personality category if you're interested.  :)
Posted by: yaeli, Wednesday, January 22, 2014, 6:12am; Reply: 23
Quoted from Eric
Now what I mean by broken record.  I have a 5yr old and 3yr old niece (Type O) who get a hold of a catch phrase, and that's all they repeat day and night.  Sometimes the catch phrase changes, but it's etched into their mind almost as a crutch for conversation.  Granted they're children, so it's not any kind of problem or condition.  But when adults act the same way, I can't help but become suspicious.  On the other hand, my niece-in-law(?) who's a type A is the sweetest, most calm and pensive little person I've ever met.  She creates, draws, writes, and converses on an entirely different level than my blood nieces.  She doesn't run around screaming and repeating what she hears at school.  She genuinely thinks and comes up with original content for herself.
Obviously, in order to study seriously such irregular phenomena, hundreds, better thousands specimens are needed.

Posted by: yaeli, Wednesday, January 22, 2014, 6:43am; Reply: 24
Illogical unnecessary excessive repetition of words or phrases reminds me of a B lady I used to befriend for a few years. Her habit was, that before letting go of an account she was sharing aloud, she would automatically repeat the last word or the last phrase 3 or 4 times, as if she was lost in it, and I think she actually was lost in it. This phenomenon got worse with age. Be this what it may be, I regard it as "a call for help", or "a cry in the wilderness", by a person who as an infant experienced much too often a lack of chance that anybody is going to listen to him.
Posted by: yaeli, Wednesday, January 22, 2014, 6:57am; Reply: 25
Quoted from Amazone I.
naming yourself a so called *hsp* ??).....
http://en.wikipedia.org/wiki/Highly_sensitive_person
Quoted from text
a large body of research now suggests that sensory-processing sensitivity (SPS) is innate and found in about 15–20% of humans
:o :o This percentage certainly rings a bell!!!

As ABO system, psychological systems too may be multiple systems, i.e., maybe an INTP can be either a non-hsp or an hsp, as much as blood type A can be either a secretor or a non-secretor.



Posted by: Amazone I., Wednesday, January 22, 2014, 11:35am; Reply: 26
ocd is also oberved in all Btypes, Yaeli shatzala ;) ;D...but P.D. mentioned it merely prone might be here our A-confrères & souers.... ;D

15-20%centage rate...hmmm(think)(smartyp)seems to correspond to the *nonnie-hood*??) ;) ;D....
Posted by: Jane, Wednesday, January 22, 2014, 6:05pm; Reply: 27
I agree with what Patty said above.  My boys are both A+ and are completely different.  My older son is very outgoing and has the risk taking characteristics of someone with ADD. My younger son is much more introspective.  They both have very sharp minds and senses of humor, like their dad who is an AB+.  I'm an O and will admit to being a too much of a people pleaser.  I'm very analytical.

Interesting topic....there are a multitude of factors.
Posted by: Averno, Wednesday, January 29, 2014, 4:53pm; Reply: 28

It's really such a big subject. I think perception is nearly always biased and limited in scope. Blood type is only one layer of influence that the personality percolates through. Sex, race and genetics are all major factors, but so are indoctrinating influences like religion and culture, education, role models, and of course what and how we process our experiences. Our personal evolution.

I think of personality much in the same way that the light spectrum defines how we see things. To one another we appear to be more about what we reflect than what we absorb, but that's only true from the viewpoint of the observer.
Posted by: Lin, Wednesday, January 29, 2014, 5:46pm; Reply: 29
I think it is interesting to consider how much blood types affect personality/behavior, and the O blood groups people I know tend to be very outgoing and the A's a range of introvert to mildly out going.  But of course as many of you say there are so many dynamics that can affect how our personality is reflected.
I have heard from a few Celiacs that they became much calmer once they were off gluten, and were told so by their family/spouse.
So I guess there are a range of factors that may come into play.
Lin
Posted by: cajun, Thursday, January 30, 2014, 2:46am; Reply: 30
I agree this is fascinating but very generalized.
One thing Eric wrote hit a chord with me. I enjoy deep philosophical discussions on a variety of subjects (and haven't had many since college!) Sometimes I find it frustrating because my family and friends do not share this with me. :-/ My Mom and one close friend are the only other A types in my life; everyone else is an O!!!! ::)  
Posted by: Averno, Thursday, January 30, 2014, 4:30pm; Reply: 31

To Eric's point of associating certain behavior while eating "off diet", we're probably all prone under such conditions. I'll be the first to admit that in the 10 years or so prior to eating right for my type, I was becoming increasingly detached, impatient and unable to cope with others. It felt as if my body was an ever-present adversary to contend with, taxing physical, emotional, and cognitive energy. Having first-hand experience approaching and retreating from the edge, it's no mystery to me why so many people have such short fuses and lead conflict centric lives. For others, a complacent haze seems to suffice.

Posted by: wayland B+, Thursday, January 30, 2014, 4:48pm; Reply: 32
Quoted from Patty H
I, personally, think we are wired not just by our blood type, but also by our genetics, which are individual for every O, A, B & AB, but also, and maybe more importantly, by our family of origin.

I believe we learn how to be in relationships by observing our parents.  Having been married for 28+ years, I see A LOT of my mother-in-law in my husband when it comes to how he behaves/reacts in relationship.  I am certainly no expert, but I have read a lot on this topic.  I believe that blood type is just one of the many contributing factors, but I believe that family of origin plays a much bigger role in this.  Just my humble opinion.


I believe very much the same way.
Print page generated: Tuesday, July 29, 2014, 5:10pm