Which country has more blood types?

Type A blood: 28%, type B blood: 24%, type O blood: 4 1%, type AB blood: 7% (the proportion of type O blood decreases from South China to North China. Type O blood is a representative blood type in Southeast Asia. )

Korean

Type A blood: 34.2%, type B blood: 27. 1%, type O blood: 27.4%, type AB blood:1.3%.

Japanese

Type A blood: 38. 1%, type B blood: 2 1.8%, type O blood: 30.7%, type AB blood: 9.4%.

Indian

Type a blood: 2 1%, type b blood: 40%, type o blood: 3 1%, type AB blood: 8% (the proportion of type b blood decreases from north to south. There are more O-type blood in southern China. )

Afro-American

Type A blood: 29%, type B blood: 18%, type O blood: 49%, type AB blood: 4%.

Type A and type O occupy the top two populations in European countries.

Our four blood types-O type, A type, B type and AB type-do not appear in all people at the same time, but are gradually formed due to continuous evolution and people's settlement in different climate regions. During the cold period, due to the lack of food on the grassland, nomadic tribes had to adapt to the new food provided by the new terrain. Due to the emergence of a new diet structure, people's digestive system and immune system will also change accordingly, and then their blood types will also change.

Type o blood has the oldest history. It appeared between 60000 and 40000 BC, when Neanderthals ate simple meals: weeds, insects and wild animals falling from trees ate the remaining fruits. And 40,000 years ago, the Krumanors appeared, and they hunted for a living. After hunting all the wild animals, they moved from Africa to Europe and Asia.

Type A blood appeared between 25,000 BC and 654.38+500,000 BC. At that time, our ancestors who ate fruit gradually became omnivorous. With the passage of time, farming has become the main mode of production for people living in Europe today, wild birds and beasts have also been domesticated, and people's diet structure has changed accordingly. Even now, most people with type A blood live in western Europe and Japan.

Type B blood appeared between 65438 BC+05000 BC and the new era. At that time, some people in East Africa were forced to migrate from the savanna to the cold and barren Himalayas. Climate change has become the main factor for the birth of type B blood. This blood type first appeared in Mongolians, and with their continuous migration to the European continent, many eastern Europeans are of this blood type today.

The last of the four blood types in human body is AB type, which appeared less than 1 0,000 years ago. It is a mixed product of Indo-Europeans who "carry" type A blood and Mongolians who "carry" type B blood. People with AB blood type inherit the disease tolerance, and the immune system is more resistant to bacteria, but they are prone to malignant tumors.

A fifth blood type will appear soon. It is entirely possible to have new blood types, such as type C. Only people with new blood types can survive in a seriously polluted world with too dense population and few natural resources left, because at this time, the original four blood types, that is, billions or even billions of people, will not be able to resist this growing ecological disaster, and they will soon disappear. This is the conclusion reached by Dr. Peter Dadamo.