Is there a scientific basis for the analysis of blood type and personality?

Blood type has nothing to do with personality. There are more than one billion people in the world, and everyone has a different personality. Blood types are divided into type A, type B, type AB and type O. Each blood type has a population of tens of millions or even hundreds of millions, but people's personalities are really different, so there is no scientific basis for the analysis of blood types and personalities.

Nowadays, many people say that constellations have something to do with personality. According to a person's horoscope, what personality, advantages and disadvantages can be inferred. There is no scientific basis for this, but many people will think it is quite accurate. This is a hint from everyone's heart. It's like there are many grandfathers on the street who will ask you a lot of questions before calculating for you, and you will inadvertently know what's bothering you, so that you will feel right when he says it again. This is a hint in your heart.

Everyone's blood type is inherited and everyone's DNA is different. It has been said before that people with type A blood are more obedient; People with type B blood will be more sensitive to various organs; People with type O blood will have stronger willpower; Type AB blood is a mixed personality of type a blood and type b blood. In fact, this statement is very incorrect and has no scientific basis.

Everyone's personality will depend on the environment in which you live, the influence of people around you, and the way you do things, regardless of blood type. Blood type and constellation are innate and cannot be changed, but personality will change because of the influence of surrounding factors.