What Might Your Blood Be Hiding? New Discovery Links Blood Type Stroke Risk

Recent research has revealed that people with blood type A may be more likely to suffer a stroke before the age of 60 compared to those with other blood types.

A study published in 2022 found a strong link between blood type A and early-onset strokes. A team of scientists working in genomics discovered that the gene responsible for blood type A may contribute to an increased risk of this kind of stroke.

The study was based on an analysis of data from 48 different genetic studies involving thousands of individuals—some who had experienced strokes and others who had not. The participants were aged between 18 and 59.

Researchers found that individuals with blood type A had a 16% higher chance of having a stroke before the age of 60, compared to those with other blood types. In contrast, those carrying the gene for blood type O1 had a 12% lower risk.

Although the findings indicate a slight increase in risk, the researchers emphasized that there’s no need for excessive worry or additional screening for people with blood type A, as the overall risk remains relatively low.

Lead researcher Dr. Steven Kittner, a vascular neurologist at the University of Maryland, noted that the exact reason for the increased risk in blood type A carriers is still not fully understood. He believes that factors such as abnormal blood clotting or the presence of certain proteins that promote clot formation may be involved.

The researchers concluded by calling for more studies to understand the exact mechanisms behind this increased risk, which could help in developing more precise preventive strategies in the future.