Type A Blood Linked to Higher Early Stroke Risk

A new study, the results of which were published in the prestigious journal Neurology, has revealed a remarkable link between blood type and the risk of developing a stroke before the age of 60. According to the study, people with type A blood are at a higher risk compared to carriers of other blood types.

The study analyzed data from approximately 17,000 stroke patients and 600,000 healthy individuals. The results showed that for carriers of the A1 gene, the probability of a stroke before the age of 60 is 16% higher. The opposite picture is seen in carriers of the O1 gene, whose risk, on the contrary, is 12% lower. For type B, the risk was approximately 11% higher.

It is noteworthy that this connection was found exclusively in cases of strokes that occurred before the age of 60. Scientists note that after this age, such a dependency was not observed. This may indicate that the mechanisms of disease development in young and old age may be different.

Scientists suggest that the reason for this phenomenon may be hidden in the features of blood clotting and vascular function, which may differ depending on blood type.

Despite this discovery, the authors of the study are quick to emphasize that even with this difference, the risk remains relatively small. According to them, there is no need for special medical supervision for carriers of type A blood based solely on this factor. Moreover, the vast majority of strokes still occur after the age of 65.