Does Blood Type Determine Lifespan? Type A, Type B, Type O, Type AB, which one is more 'preferred' by cancer?
Blood type refers to the type of antigens on the surface of blood components (including red blood cells), white blood cells, and platelets. Generally speaking, blood type refers to the specific antigen type on the red blood cell membrane, which is most closely related to clinical practice. Red blood cells are well-known ABO blood group system and Rh blood group system.
What is the law of blood type inheritance?
According to the genetic law of ABO blood type, ABO blood type is controlled by the three reset genes IA, IB and I, and the blood type is jointly determined by both parents of ABO.
ABO When the glycoprotein on the red blood cell membrane affects the blood type, when IA or IB exists, it is A blood or B blood; when IA and IB exist at the same time, it is AB blood;
When only the i gene is present, it appears as type O blood. However, there are also special cases where the CIS-AB gene exists in the chromosomes of few human individuals at the same time. When they have offspring with O blood, children with O or AB blood will appear.
So people with type O blood and the CIS-AB gene can have children with type O blood, but this is extremely rare.
According to Rh, if both parents have either party, the genetic rule of blood type is Rh negative blood type, that is, red blood cells do not contain D antigen, and children have D antigen Rh. If both parents have Rh negative blood, the probability of Rh negative blood will increase, and the child can almost Determined as Rh negative blood.
But I don't know where to start. Some believe it is closely related to people's life expectancy and cancer risk. Does this statement really have a scientific basis? Let us explain in detail through this article.
Does Blood Type Determine Lifespan?
Some people think blood types are just 13 letters, but they're only scratching the surface of the blood group system. As of 2021, the International Society of Blood Transfusion has announced 43 blood group systems and 343 blood group antigens. These numbers will continue to grow as research progresses.
The abo system we are most familiar with now is the blood group system first discovered by human beings. Mathematician and doctor Stephen M. Joseph, a famous fitness expert, through a questionnaire survey of 5,000 people, Christianu found an interesting correlation, blood type and Regarding longevity:
Type O blood: The survey found that type O blood has the longest life expectancy, with an average life expectancy of 87 years;
Type B blood: people with type B blood have a life span of 10 years less than those with type O blood;
Type AB blood: the average life expectancy of AB blood is lower than that of type B blood, and the average life expectancy is only 67 years old;
Blood type A: Among all blood types, blood type A has the shortest life expectancy, with an average age of only 62 years.
Does blood type really determine a person's life expectancy? In fact, the study has been controversial and race has not been covered. The Chinese base is relatively small. In fact, there is no clear evidence for which blood type has genes for longer life.
According to the research of the World Health Organization, lifestyle plays an important role in human health and life expectancy, accounting for more than 60%, while genetic factors only account for 15%. Simply put, longevity requires hard work, and blood type is just a genetic factor.
[Type A, Type B, Type O, Type AB, who does cancer prefer? 】
In 1986, a research team at Shanghai Jiaotong University included 18,000 men and conducted an exploration between blood types and tumors. After 20 years of follow-up of these people, it was finally found that patients with blood type A have a susceptibility to digestive system tumors, especially intestinal cancer and gastric cancer.
Many people may think, is blood type A the most unfortunate? First of all, it needs to be explained that the research of Shanghai Jiaotong University is an observational study, and the causal relationship between tumors and blood types cannot be inferred.
Tian Zeng, director of the Pancreatic and Gastric Surgery Ward at the Cancer Hospital of the Chinese Academy of Medical Sciences, said that the research on certain molecular biological immune mechanisms of blood type A and gastric cancer is still unclear.
The occurrence of cancer itself is related to many factors. Of course, this is closely related to daily bad habits, such as smoking, drinking, staying up late and going to bed late. Depression, etc., will lead to decreased immunity and more and more active cancer cells.
If you want to prevent cancer, you must develop good living and eating habits, so that you can prolong your life as much as possible, which is also the best way to protect your body.
No matter what blood type you are, if you don't pay attention to maintenance in your daily life and don't know how to prevent cancer, you will become a "prey" of cancer sooner or later. I hope everyone can develop good habits to prevent cancer.
What are the early symptoms of cancer?
Cancer is a malignant tumor that usually originates in epithelial tissue. Some cancer patients may have no abnormal manifestations in the early stage, but some early cancer patients may also have lumps. Abnormal fever. Pain. Cough. Sputum. Diarrhea. Abdominal pain. Chronic ulcers. Weight loss. Fatigue. Swollen lymph nodes. Difficulty swallowing. Abnormal bleeding and other symptoms. According to the different primary sites, the early clinical manifestations of primary tumors are also different.
It is recommended that people suspected of cancer and other groups should go to the hospital for physical examination regularly. If there is cancer, it should be treated as soon as possible, which will help to improve the cure rate of cancer, prolong the survival period, and improve the quality of life, so as not to miss the best treatment opportunity.
How to prevent the occurrence of cancer?
Reasonable diet: The occurrence of some cancers is related to diet. For example, food contaminated by Aspergillus flavus is related to liver cancer, smoking is related to lung cancer, chewing betel nut is related to oral cancer, and long-term drinking is related to esophageal cancer and liver cancer. These cancers can be prevented to some extent by changing poor eating habits and quitting smoking.
Adjust mentality: Studies have found that long-term staying up late, depression, and stress will reduce human immunity and increase the incidence of cancer. Maintaining a good attitude, relaxing, releasing stress appropriately, and maintaining adequate sleep can reduce the risk of cancer to a certain extent.
Regular physical examination: The early symptoms of most cancers are not obvious, especially those with a family history of cancer. Go to a regular hospital for physical examination, early detection. Early diagnosis. The key to cancer prevention is early treatment.
Proper exercise: Proper exercise can improve immunity, improve physical fitness, and maintain good health, which can prevent the occurrence of cancer and other diseases.