Blood in a test tube

Know Your Blood

Some people pore over their astrological signs, look for clues through genealogy, have their palms read or fortunes told – all to learn more about themselves. But most people don’t know that you can learn a lot about your history and your future by studying your blood type.

Everybody has one of eight blood types, depending on the sugars (antigens) and proteins in their blood. Your blood type is determined by genetics – you inherit it from your parents. Just by knowing your blood type, you can find out which diseases you could be resistant to, ethnicity, and even if you are more likely to get pregnant easily.

People with Type O blood may have a lower risk of COVID-19 infection and are less likely to have complications if they do get sick, according to the American Society of Hematology.

Cholera likes people with Type O blood, but malaria doesn’t. People from Asia are more likely to have Type B blood than people from Europe, who are more likely to have Type-A. People with Type A blood are more fertile than those with Type O.

Blood Types

Blood types fall into four categories – A (those with A antigens), B (those with B antigens), AB (those with both), and O (those with neither). And everyone either has the Rh protein (positive) or not (negative). Eighty-five percent of the world has Rh-positive blood.

In fact, two blood types win the popularity contest – 37 percent of the world is O-positive and 36 percent are A-positive. The rest of the blood types just can’t compete: 8 percent are B-positive, 7 percent are O-negative, 6 percent are A-negative, 3 percent are AB-positive, 2 percent are B-negative and only 1 percent of the world is AB-negative.

That gets really important if you need a blood transfusion. If you’re one of the more popular types, it’s not a big deal, but if your blood type is rare, it can get tricky to find blood donors to match. 

Type AB is considered the universal recipient because they can receive any type of blood, while Type O is called the universal donor because they can donate to the most people. O-negative can donate to any other blood type, while AB-positive can receive from any other.

People with Rh-positive blood can receive from positive or negative donors, but Rh-negative folks have to have negative blood.

A Japanese theory even links blood type to your personality. For instance, people with Type A are sensitive team players, while Type O folks are curious, generous, and stubborn. AB people are artistic, while Type B folks are cheerful and eccentric.

By Amanda Rogers for Surepoint Medical Centers

Photo by CDC on Unsplash


Amanda Rogers is a freelance writer based in Fort Worth, Texas

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