Studies found three blood groups have a heightened risk of developing canc*r. See below 👇

All blood contains the same basic components – plasma, red and white blood cells, and platelets. However, some blood contains antigens, or proteins and sugars that the body uses to identify the blood as belonging to the body. There are two different kinds of antigens, A and B. People with type A blood have only A antigens, while people with type B blood have only B antigens. People with AB blood have both kinds, and people with type O blood have neither.

There’s also the Rh factor, which is a protein that may or may not appear in red blood cells. A person with type A blood and Rh factor will have A+ blood, while a person with the same blood type and no Rh factor will have A- blood. The same applies to all blood types, which means that there are eight types in total.

Blood type is important because it determines what kind of blood a person can receive during a transfusion. You can’t receive blood with antigens that don’t match yours, or your immune system might attack those antigens. Therefore, people with O blood can only receive O blood but can donate to anyone. People with B blood can receive B and O but not A or AB. People with A blood can receive A and O blood but not B or AB. People with AB blood can receive any type of blood. The Rh factor must also match.

AB Blood Can Increase Your Risk For Cognitive Impairment
Unfortunately, having AB blood makes you more prone to cognitive problems later in life. In a study published in the journal Neurology, researchers reported that people with AB blood got lower scores than those with other blood types on a cognitive performance test that required remembering lists of items.

While AB blood does have a connection to some clotting factors and blood proteins that may partially explain the memory issues, a full explanation is still unknown.

Different Blood Types Put You At Risk For Different Cancers
Depending on your blood type, your risk of different kinds of cancer varies. People with type AB blood are at a shocking 26% higher risk of developing stomach cancer than people with B or O blood, while type A blood carries a 20% greater risk. This may be because people with AB and A blood have heightened immune reactions to the H. pylori bacteria, which can trigger cancer.