Blood Transfusions Might Alter Your Personality, New Research Raises Questions



A body of research suggests that blood transfusions might alter your personality and have the potential to impact the recipient’s personality and behavior, although this phenomenon remains a topic of debate and further investigation.

Blood Transfusions Might Alter Your Personality

Several studies have delved into this intriguing possibility, shedding light on the perceived connections between blood donors and transfusion recipients.

In 2018, scientists from the University of Geneva conducted a study involving seven participants, the majority of whom acknowledged the potential for transfusions to induce changes in their behavior and values.

The study revealed that three patients believed that their transfusions might have influenced their own behavior and values. These findings hint at the intriguing notion that certain personality traits of the blood donor could be transmitted through the transfusion process.

Another study conducted in 2013 at the University of Michigan explored the persistent belief that internal characteristics of individuals have causal powers, potentially leading recipients to adopt some of the donor’s characteristics. Even though scientific evidence may not support this hypothesis, it remains an intriguing belief among the public.

Recently, researchers from the Karolinska Institutet in Sweden, the University of Copenhagen in Denmark, and other institutions unveiled a study that raised concerns about spontaneous brain hemorrhages possibly linked to blood transfusions.

The research suggested that recipients of blood from donors who later suffered brain hemorrhages were twice as likely to experience one themselves. This led to concerns that cerebral amyloid angiopathy, a vascular disease causing protein buildup in the brain’s blood vessels, could be transmitted through transfusions.

It’s essential to note that this phenomenon, if confirmed, remains quite rare, with only 0.1% of donors showing recurring hemorrhages. Lead study author Gustaf Edgren emphasized that the likelihood of suffering a brain hemorrhage due to something transmitted through a transfusion is very low.

The debate surrounding the potential impact of blood transfusions on a recipient’s personality and behavior prompts the need for further exploration.

The University of Geneva researchers call for additional research in larger populations to evaluate the incidence of perceived changes in behavior or values after a blood transfusion. This, in turn, could lead to improved information provision for future patients in need of transfusions.


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