The blood type personality theory is a pseudoscientific belief prevalent in Japan and South Korea, which states that a person's blood group system is predictive of a person's personality, temperament, and compatibility with others. The theory is generally considered a superstition by the scientific community.
However, it is believed in Korea that blood type influences one's personality and therefore the way one behaves towards others, much like the zodiac signs. Of course, there are those who firmly believe this and those who think it is just a rumor.
The Western world looks at different horoscopes to examine blood type compatibility with each other. But in Korea, they may deem someone's likability or potential as a romantic partner based on their blood type. Koreans even believe that a specific blood type can give important information on someone's health status.
Many believe people with type O blood have an extroverted personality suited to collectivistic Korean culture and few character flaws, which may have arisen from the fact that type O blood is considered the “universal donor.”
In Korea, Rh-negative is considered a rare blood type according to the Korean Red Cross standards, with an incidence of 0.4%; however, pregnancy can lead to several complications among Rh-negative women [10].
Asian: 39% O-positive, 27% A-positive, and 25% B-positive.
Three studies have reported an association between extraversion and blood type. Lester and Gatto (1987) found that those with blood types O and AB had significantly higher extraversion scores, while blood type A and B individuals had significantly higher introversion scores.
The ranking of ABO blood groups phenotypic distribution in China is O > A > B > AB. The proportions of A, B, O and AB type in China population are 28.72%, 28.17%, 34.20%, and 8.91%, respectively.
If mom passes her O and so does dad, then the child will be OO which is O type blood. Each parent has a 50% chance of passing down the O gene. So each child has a 25% chance of ending up with an O blood type.
The blood type personality theory is a pseudoscientific belief prevalent in Japan and South Korea, which states that a person's blood group system is predictive of a person's personality, temperament, and compatibility with others.
BTS's Jin and Suga have type O blood, which accounts for 44% of the population. J-Hope, RM, Jimin, and Jungkook all have type A blood, the same as 42% of the population. V's blood type, however, is AB. Just 4% of the world's population has type AB blood.
In Korea, inquiring about each other's blood type is part of people's culture. Even though there's no official science behind it, a person's blood type is said to be connected to their personality. As such, this is usually considered a stepping-stone in forming an initial opinion of someone.
Blood Type AB
But in reality, they are actually among the most caring, honest, and romantic of the blood types, and are generally the first to forgive.
Though most studies have shown that blood type doesn't directly influence personality, some experts still believe there may be more to the story than what's flowing through your veins.
One of these beliefs is the theory that a person's blood type influences their own personality. It's their way of distinguishing the temperament and compatibility of the person with other people. So if it's your first time to visit the country, brace yourself as you will probably encounter this question more than once.
Of the eight main blood types, people with Type O have the lowest risk for heart attacks and blood clots in the legs and lungs. This may be because people with other blood types have higher levels of certain clotting factors, which are proteins that cause blood to coagulate (solidify).
Type O is particularly high in frequency among the indigenous populations of Central and South America, where it approaches 100%. It also is relatively high among Australian Aborigines and in Western Europe (especially in populations with Celtic ancestors).
In molecular history, type A appears to be the 'oldest' blood type, in the sense that the mutations that gave rise to types O and B appear to stem from it. Geneticists call this the wild-type or ancestral allele.
The ABO gene is connected with brain function and memory loss. People who have blood types A, B, and AB are up to 82 percent more likely to develop cognition and memory problems — which can lead to dementia — compared to those with Type O.
Some of the most common traits of blood type A are as follows: Kind. Shy. Stubborn.
The study found that the blood group (AB) received the highest average in the Intelligence Quotient (IQ) test which is also the highest in the GPA. And that the blood type (B) was the lowest in the GPA and in test results.
A woman's blood group could influence her chances of getting pregnant, scientists have found. Those with blood type O may struggle to conceive due to a lower egg count and poorer egg quality, while those with blood group A seem to be more fertile.
(7,8) Their high rate of blood group O suggests that the Amerindians and Eskimos are directly descended from Cro-Magnon ancestors, probably Mongolians, who migrated around 15,000 B.C. to the Americas.
RH negative blood, compared with the common A, B and O types, is a variety highly unusual in China. With only 0.1% to 0.3% of the population having this blood running through their veins, it is therefore referred to as "panda blood." Rare as the blood type is, people with RH negative blood must not be ignored.