Scientists from Japan conducted a study, during which they concluded that the first blood group is the most “dangerous” for humans. Its wearer is 3 times more at risk of death from severe injury.
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According to the researchers, the blood plasma of the first group contains a low content of von Willebrand factor, which is a glycoprotein in blood plasma. As a result, a person has poor coagulation. Due to this factor, the risk of blood loss in case of injuries increases, which provokes serious consequences up to death.
It is worth recalling that people who have the first blood group are considered universal donors, while they can only be transfused with the blood of their own group.