I recommend you to find out your blood type.....not for personality reasons, but for safety ones.
A blood transfusion was the difference between life and death for one of my older brothers.
If he had received an incompatible type, he would be dead.
There are 4 blood types: A, B, AB, and 0. These blood types can be positive or negative.
A person from the 0 group can only receive blood from other people of the 0 group.
People from the A group can receive blood from A and the 0 group.
People from the B group can receive blood from B and the 0 group.
And AB can receive blood from AB, A, B and 0.
People from a negative group can only receive blood from the negative version of their compatible groups.