Blood type is a personal medical detail that doesn't come up much in casual conversation or even at doctor's visits, so I never really thought much about mine until it was required when filling ...

The most prevalent blood type, O, on the other hand, appears to provide some protection; individuals in this group had a 12% reduced risk of an early stroke than those in other blood types.

In comparison, the para-bombay phenotype, known as “dinosaur blood” accounts for about one in 10,000 to one in 100,000.

Not to B-negative, but your blood type could offer a clue to your risk of having a stroke before 60. “The number of people with early strokes is rising,” said Dr. Steven J. Kittner, co ...

A blood type is considered rare if fewer than 1 in 1,000 people have it. A person is said to have rare blood group when he lacks the high-frequency antigen or multiple common antigens.