Rare blood type – a special gift or a risk? How it differs from others

Blood type plays an important role in human health and well-being. Some blood types are common, while others are considered truly rare. For those with a rare blood type, this can be both an advantage and a serious risk.

The rarest in the world are:

• AB negative (AB-) – found in less than 1% of the population.

• O negative (O-) – universal donor, but rarer than others.

• "Golden blood" (Rh-null) – a unique blood type registered in fewer than 50 people worldwide.

1. Transfusion difficulties
   People with rare blood types may face problems finding a suitable donor. This is especially true for those with a negative Rhesus factor, as compatibility with other groups is limited.

2. Unique properties of the immune system
   Research shows that people with rare blood types may have increased or, conversely, decreased resistance to certain diseases. For example, those with type O are less likely to have cardiovascular diseases, while those with type AB have a higher risk of immunity problems.

3. Impact on health and lifestyle
   Some scientists believe that blood type affects predisposition to stress, metabolic rate, and even compatibility with certain foods. For example, people with type O are often recommended to eat more protein-rich foods, while those with type B are advised to follow a balanced diet.

A rare blood type is not just a physical characteristic but also a responsibility. It's important to know your blood type, regularly check your health, and if possible, become a donor to help those who may find themselves in a difficult situation.