Does blood type play a role in cancer risk?
Studies have examined the relationship between blood type and certain chronic diseases. A 2015 study found notable differences depending on blood type.
Groups A, B, and AB: an increased risk of certain cancers
People with blood types A, B, or AB appear to have a slightly higher risk of developing certain types of cancer, including:
Stomach cancer: Research suggests that these blood types are more susceptible to certain bacteria, such as Helicobacter pylori, a known risk factor for this type of cancer.
Pancreatic cancer: Again, groups A, B, and AB would be more affected.
Type O: A Protective Effect?
Conversely, type O appears to be associated with a lower risk of these cancers. Researchers believe this may be related to a less pronounced inflammatory response to bacterial infections.
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