The first positive blood type most often occurs in people. It is also called a zero, because it differs from the others in that it does not contain antigens A and B. The peculiarity of the first group is that it is suitable for transfusion to all recipients, ie a person with zero blood group - it is a universal donor.
Characteristics of men and women
The separation of blood into various types based on the content of different antigens in blood cells, which carry oxygen throughout the body - erythrocytes. In total there are 4 possible combinations. The red blood cells may be antigens A, B, A and B together, or absent altogether. The latter case is typical for first blood. The second of its name - the blood group 0 (zero means absence of antigens A and B.
Another important characteristic of blood fluid - Rh (Rh), which is dependent on the presence of antigen D. If it is found in the blood cells, the Rh factor is positive in the case of his absence - negative. Rh is set in blood transfusions and gestation.
The first group - the most common type of blood in men and women. It is typical for the majority of people on the planet - about 40-50%. Frequency prevalence nonuniform depending on nationality. First negative rarer than positive the same group.
A person can not be born with the first type, if one of his parents was a fourth. Also, if one of the first subgroup of partners, the couple may not be a child with a fourth. If both parents have the first group, the child will be the same.
According to scientific research, the first group has appeared before all others. First, the entire human population had zero group. With the progress of the evolution of particular blood some people have changed, adjusting to the environmental characteristics.
Benefits
The main feature of this species in the blood that, as donor material it is allowed to use for people with a second, third and fourth types, unless they are not negative Rh. And representatives of the blood group 0 (1), as donors will approach only people with similar type. Given that one positive - the most common type of biological fluid, to find a donor material is not a problem.
disadvantages
The disadvantage of the type of blood 0 (I) can only be called a case where Rh negative, especially when it occurs in women. This situation is the same for people with all blood types. Rh negative restricts the number of potential donors, as can not transfuse biological material if it is Rhesus positive.
Women with negative 1 has the risk of complications at the stage of conception and gestation, when the fetus is positive Rh. This situation sometimes requires special treatment.
Traits
1 blood group - the oldest of the species present and the people at the stage of development of a society where the main occupation, which ensures the survival, was hunting. Therefore, people with this type of biological fluid is genetically inherited from their ancestors are the features that have contributed to the effective hunting. Rh factor in this case has no special significance.
People with the first positive as the first negative blood group mostly have the qualities of leaders. They are characterized by self-confidence, determination and endurance. They are ambitious, when the goals are assertive, there are unduly emotional. Men are selfish and jealous, are good lovers. Women are difficult to react with restraint to the criticisms in his address.
Most of the representatives of different positive view of the world, rarely faced with mental disorders than people with another type of biological fluid.
planning for pregnancy
If you wish to have a child can be difficult when the first group of blood in women with negative Rh. If her partner has a positive figure, the unborn child, it can be any.
If the rate of the fetus is positive, the female body can begin to produce antibodies to the antigen D, which is present in the child. This is called Rh-conflict, and can lead to disease in the child or spontaneous abortion.
Sometimes couples with different Rh factor are having difficulty conceiving, because due to incompatibility occurs miscarriage in early pregnancy, when a woman is not even aware of the fact that she was pregnant.
The greatest risk of problems observed in the second and repeated pregnancies. This occurs due to the fact that antibodies to antigen D maternal organism develops during delivery, when the child comes into contact with body fluids. The next harboring, if the fetus is again a positive Rh factor, antibodies begin to attack the body of the child, because they are already present in the mother's body.
To avoid negative consequences for the health of the child, the doctor may prescribe a special treat.
Compatibility transfusion
Decant 1 group can be to all people due to the absence of antigens A and B, so in the body of the recipient for them can not develop antibodies that cause clotting of blood fluid.
A person with the first group can not pour the blood of the second, third and fourth. Due to the content of antigens that are absent in the recipient, he will begin to produce antibodies thereto. This will lead to agglutination of red blood cells and form clots.
If transfusion is necessary to pay attention to the Rh factor. People with Rh negative can not inject the biological material with a positive Rh, and vice versa - as possible.
Despite the fact that people from the first group are considered universal donors, in modern medical practice when trying to carrying out blood transfusions use donor material, the maximum matching of the different characteristics to the recipient. The first type is used in transfusions for people with other kind only in an emergency, when there is no suitable donor.
Advice on nutrition
first blood type representatives, regardless of whether positive or negative Rh factor they have, it is important to food, rich in proteins. They should be designed in such a way the menu, there to present dishes of meat products, in their absence, people may feel irritated and weak.
Important presence in the diet of seafood, because they have a lot of iodine, a trace mineral that is important for proper functioning of the thyroid gland - the representatives of first blood varieties are often irregularities in the work of this authority.
Avoid or limit the amount of dairy products.
