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Your Blood Type Alert! If You Have This Blood Type, Your Stroke Risk Is Higher

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According to scientists, your blood type could be a precursor to early strokes. Research has revealed that individuals with blood type A are 16% more likely to have a stroke compared to those with other blood types. Studies suggest that individuals with a specific blood type are more likely to suffer a stroke before the age of 60. Blood types define the chemical diversity found on the surface of red blood cells. These groups, known as A and B, together as AB, or independently as A or B, and the absence of these marks the O group. In a 2022 study, genetic researchers discovered a significant relationship between the A1 subgroup gene and the risk of early stroke. The research analyzed data from 48 genetic studies involving 17,000 stroke cases and nearly 600,000 stroke-free individuals. The study participants ranged in age from 18 to 59. The results indicated that individuals carrying genetic variations related to blood type A have a 16% higher risk of having a stroke before the age of 60 compared to those with other blood types. On the other hand, individuals with the O group gene variation have a 12% lower risk. The lead author of the study, vascular neurologist Steven Kittner, stated, “We do not yet know why blood type A presents a higher risk,” suggesting that this could be related to blood clotting factors, cells lining blood vessels, and circulating proteins. The study also noted that individuals with blood type B have an approximately 11% higher likelihood of having a stroke compared to stroke-free controls, regardless of age. Research showed that the genome encoding blood type is associated with coronary artery calcification that restricts blood flow and is linked to heart attacks. In the United States, about 800,000 people suffer a stroke annually, with the majority occurring in individuals over the age of 65. The risk of stroke doubles every decade after the age of 55. The findings of the study indicate that strokes in younger individuals can have different mechanisms compared to strokes in older individuals. Stroke cases in young individuals are believed to be more related to blood clot formation rather than fat accumulation in the arteries. This study once again emphasizes that individuals with blood type A, especially at a young age, should not overlook the risk of stroke.

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