One of the reasons Japan developed the blood type personality indicator theory was in reaction to a claim from German scientist Emil von Dungern, that Blood type B people were inferior. The popular belief originates with publications by Masahiko Nomi in the 1970s.
In Japanese culture, it is believed that a person's blood type is an essential indicator of one's personality. For them, it determines whether one's character will be compatible with other people and how it affects the work that they do.
In Japan, however, blood type has big implications for life, work and love. Here, a person's blood type is popularly believed to determine temperament and personality. "What's your blood type?" is often a key question in everything from matchmaking to job applications.
O blood types are considered generally optimistic (rakkanshugi in Japanese). They're born leaders who are realistic and always willing to take charge and set the tone of a group.
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).
The authors found that individuals with type O blood were less likely to contract SARS-CoV-2 compared with non–type O blood groups (ARR = 0.88; 95% confidence interval [CI], 0.84–0.92). Rhesus (Rh)-negative individuals were also less likely to be diagnosed with SARS-CoV-2 (ARR = 0.79; 95% CI, 0.73–0.85).
Asian: 39% O-positive, 27% A-positive, and 25% B-positive.
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.
O negative blood can be used in transfusions for any blood type. Type O is routinely in short supply and in high demand by hospitals – both because it is the most common blood type and because type O negative blood is the universal blood type needed for emergency transfusions and for immune deficient infants.
Blood Type O Personality
People with blood type O are considered to be outgoing, go-getters, and daring. Blood type personality theory states that they usually set high standards for themselves, and they do all they can to achieve them. Blood type Os have excellent leadership capabilities.
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 China, women often don't learn that they have a rare blood type until they become pregnant or plan to become pregnant. This was precisely the case for Wang, who discovered three years ago during a routine prepregnancy checkup that she has Rh negative blood — nicknamed “panda blood” because of its rarity.
Type O positive blood is given to patients more than any other blood type, which is why it's considered the most needed blood type.
The reason is that Korean people believe that each blood type has its own distinct personality and it is the quickest way to determine a person's temperament and even compatibility with others. You may feel confused as to why people ask about blood types in Korea, but don't worry.
Recommended diet for type A
Also, meat is difficult to digest and turns into fat easily for type A people, so it is better to eat beans and fish for protein. Japanese traditional foods such as miso soup, natto, tofu, and so on are a good match for type A people.
Blood groups in Australia
O positive - 40% O negative - 9% A positive - 31% A negative - 7%
The most common blood type in Australia is O positive and the least common is AB negative. The table below lists each of the blood types, including how common they are across the Australian population. This is the most common blood type. O- can be safely given to any patient, regardless of their blood type.
A person who is AB-positive has both antigen types, as well as the Rh factor. This person could receive blood from any of the common blood types without triggering an immune response. This makes them known as a universal recipient.
Peptic ulcer also has a connection with the ABO blood group, and it was the first to be identified. Blood type O individuals showed that they had higher susceptibility to peptic ulcers [1, 9]. Gastritis and ulceration of the stomach/duodenum were later correlated with infection with the bacterium Helicobacter pylori.
Blood Type A: Central and Eastern Europe
Type A is common in Central and Eastern Europe. In countries such as Austria, Denmark, Norway, and Switzerland, about 45-50% of the population have this blood type, whereas about 40% of Poles and Ukrainians do so.