The character of blood type

Is there a relationship between personality and blood type?

I say , " It is not !!! "

Expert says. "Spirit and personality of the human gene to born ,There is a portion that is formed"

IN MY OPINION, I think >>

In after birth, character is constantly changed, so that , there is no convincing that blood type determine character of person. 

Being evaluated separately and conclude tentatively in the blood type people,  

It is that making a mistake unscientific.

< Barnum effect >

People Barnum effect that is used in terms of psychology, that there is a tendency to accept the accurate information once the information coming from the outside.

A type of people think I am a timid person.

However, Timid is a universal feature that everyone has!!

I think there is no relationship between personality and blood type, to determine the character by dividing the property of everyone has that there is no meaning.