Genetic testing and health

Modern medical research has proved that almost all diseases are related to genes except trauma. Just as blood is divided into different blood types, normal genes in the human body are also divided into different genotypes, that is, gene polymorphism. Different genotypes have different sensitivities to environmental factors, and sensitive genotypes will cause diseases under the action of environmental factors. In addition, diseases directly caused by abnormal genes alone are called genetic diseases.

It can be said that there are three root causes of the disease:

(1) gene acquired mutation;

(2) Interaction between normal genes and environment;

(3) genetic defects.

The cause of most diseases can be found in genes.

Genes, through their guidance on protein synthesis, determine the efficiency of our absorption of food, elimination of toxins in the body and response to infection.

There are more than 4000 kinds of diseases related to heredity in the first category, which are inherited by fathers or mothers through genes.

The second kind of diseases are common diseases, such as heart disease, diabetes and various cancers. , is the result of the interaction of various genes and various environmental factors.

Gene is the chemical carrier of human genetic information, which determines the similarities and differences between us and our predecessors. When genes "work" normally, our bodies can develop and function normally. If a gene is abnormal, even a very small fragment of the gene is abnormal, it may lead to abnormal development, disease and even death.

A healthy body depends on the constant renewal of the body to ensure the normal quantity and quality of protein, and these protein cooperate with each other to ensure the normal execution of various functions of the body. Each protein is the product of the corresponding gene.

Genes can be changed, some changes will not cause changes in the quantity or quality of protein, and some will. This change in genes is called gene mutation. Changes in the quantity or quality of protein will lead to physical dysfunction and even diseases.