A positive blood test (A+) means your blood has type-A antigens and the presence of the Rh factor (or rhesus protein). Antigens are markers that appear on the surface cells of blood cells.

This is the most common type of blood, according to the American Red Cross.

Why do you have an A+ blood Type?

Genetic inheritance of blood types is a way to determine your genetic makeup. If you are of type A blood, your parents may have had any of the following combinations:

  • AB and AB
  • AB and B
  • AB and A
  • AB and O
  • A and B
  • A and A
  • O and A

One parent may be type AB while the other is type B.

The following blood types are not compatible with type A blood.

  • B and B
  • O and B
  • O and O

Personality traits and blood type.

Although there is no scientific proof blood types are linked with certain personality traits, it’s a common theory in Japanese culture called “ketsuekigata”.

These are the personality traits that A+ blood types are believed to have.

  • Tense
  • Be stubborn
  • earnest
  • Responsible
  • patient
  • Reserved
  • Sensible
  • Creativity

Type of blood and diet.

The best-selling book “Eat Right For Your Type” explains how you can lose weight and become healthier by following a diet that is specific to your blood type. It was published in 1960 and is still very popular today.

The following diet is recommended for those with type A+ blood.

  • Avoid meat.
  • Avoid wheat, corn, and kidney beans, as well as dairy.
  • You can eat seafood, turkey, and tofu.
  • Consume fruits, vegetables, and whole grains.

Harvard Medical School says there is no evidence to support the diet’s effectiveness.

How the ABO blood type system affects donating and receiving blood.

The ABO blood group system divides human blood into four types:

  • A
  • B
  • O
  • AB

This system relies on antigens present or absent in red blood cells.

Compatibility issues between blood types make it crucial that the appropriate donors are matched with someone who requires a transfusion.

  • You can receive blood from any donor if you have the type AB blood.
  • Type O blood means you can donate blood to anyone.
  • Type A blood can be redeemed by type O or type A blood.
  • Type B blood can be redeemed by type O or type B blood.

Mixing blood from people of different blood types can lead to toxic reactions.

ABO blood typing is not enough. Your blood will be classified based on the presence or absence of a particular protein (rhesus factor).

  • Rh positive (+).
  • Rh negative (-)

Rare blood types.

A+, A+, B+, and B- are the most common blood types. Type AB- is the rarest.

The American Red Cross lists over 600 known antigens. Rare blood groups are defined as those that lack the antigens 99 percent of people have positive for.

The takeaway.

Type A+ blood is a fairly common type of blood that you inherited from your parents.

It is important to know your blood type in order to determine if you are a match for a blood transfusion. Tell your doctor if you are unsure of your blood type.

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