A and B antigens.
Type O: Red blood cells carry neither A nor B antigens.
Each blood group can also be classified as Rh-positive or Rh-negative, depending on another marker found on red blood cells.
Your blood type is inherited from your biological parents and remains generally unchanged throughout your life.
Although blood groups are essential in medicine, researchers are still investigating whether they influence certain long-term health outcomes.
The Blood Type That Attracted Researchers’ Attention
One study published in 2004 examined the blood groups of 269 Japanese people who had reached at least 100 years of age.
Researchers compared
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