Well, now research shows that almost all diseases can be linked to genes (people in this field especially believe this). . . ), but this inheritance is actually a very complicated problem. It does not mean that every individual will express pathogenic genes, and gene expression is closely related to environmental impact. Therefore, even if there is no individual difference in the genome, the environment and experience of identical twins will be different, and the gene expression will not be the same! You should know that every individual carries the disease-causing genes (so close relatives are not allowed to get married), but it doesn't mean that these disease-causing genes will be reflected in you and your descendants. If you and her family are really worried about your physical problems, you might as well develop good living habits in your later life. As a man, alcohol, tobacco and entertainment may be inevitable, so pay more attention to your daily life. You see, the incidence of cancer, "three highs" and cardiovascular and cerebrovascular diseases is very high now, but the incidence of infectious diseases in previous years has been controlled. This is actually a problem of environmental change (sanitary conditions have improved, but various radiation, environmental pollution and food safety problems have increased). Therefore, it is the key to pay attention to your health, and don't worry about any genes or inheritance-what's the use of your entanglement? Those things have been determined from the moment you become a fertilized egg! You have to believe that the so-called inheritance is a probabilistic event, which is scary, but not inevitable. Don't think too much, keep a good mood on weekdays, don't have too much pressure, drink less alcohol and tobacco, exercise more, and eat a reasonable and balanced diet, which will definitely ensure your happiness! !
Liver disease is closely related to people's living habits and living standards. First of all, hepatitis infection is prevented by paying attention to food hygiene and vaccination. Secondly, you said that your parents "used to work in Shanghai for a long time to do interior decoration and so on." They are both carpenters. In my memory, they all eat and live in places where they work (I don't know if there will be incentives). " I'm telling you, there's a motive But the changes caused by the environment only happen to them, not to you. In addition, overwork, malnutrition, careless diet and easy temper are all harmful to the liver. Just pay attention to these. I think, judging from your recent situation, you are very healthy and have a good living environment. So, what are you worried about?
There are indeed some places where the incidence of certain diseases is relatively high. Linzhou, for example, is a high incidence area for patients with esophageal cancer. Many people are doing this project to study the relationship between environment and gene expression. I don't know much about Qidong, but it is necessary for your family to pay attention to eating and drinking safety and stay away from polluted areas. Don't panic, relax!
Then there is the "guarantee" you said, which really doesn't need to be considered! Who can guarantee their future? Just live in the moment. People are already very weak when they are old, and there are still a few minor illnesses and disasters. That's nothing! Why go so far? You worry too much. Besides, everyone has a defective gene, and the woman can guarantee that she will live forever without any disease. That's impossible. So you don't even mention absolute guarantee, and no one can give absolute guarantee. If you want to ensure absolute health, you must ensure absolute good living habits and good mood, which is very real.
Let me give you another example: phenylketonuria is a serious genetic disease that has been proved (I won't mention the pathogenesis with you, if you are interested, please check it out). Patients show dementia, and some of them will be accompanied by nervous system signs. But even patients with phenylketonuria can have a fairly normal IQ (but not very smart) and give birth to healthy children as long as they are found early, reasonably control their diet and take drugs. Our teacher showed us an example in class. It was an English woman. Besides? Albinists can also have normal offspring. You see, even if serious genetic diseases have been identified, there are ways and treatments to avoid them, and these patients can live a happy life. Then why are you so worried? What's more, there is no conclusive evidence that liver cancer or other cancers are caused by genetic factors!
Normal cells have a life span, only cancer cells can divide indefinitely and have the ability to transfer and infect normal tissues. Everyone has proto-oncogene (normally not cancerous, but inhibited by tumor suppressor genes, but may be activated to become cancerous) and tumor suppressor genes; When an individual is affected by the environment, the proto-oncogene is activated and the tumor suppressor gene does not work, the individual may become cancerous. Therefore, it is now suspected that the onset of cancer is a genetic mutation induced by environmental conditions. Therefore, maintaining a good mood, staying away from various carcinogenic environments and reducing exposure to carcinogenic factors will reduce the incidence rate, which is the key to maintaining a healthy and happy life.
I have explained so much to you just to tell you not to worry and get married! ! It is not easy for people to find their other half. Don't give up the happiness in hand for the rest of your life because of some distant and ethereal so-called illness. How stupid that is! I 100% certainly can't do it, but I can tell you responsibly that it is not because your father has liver cancer that your old man will get liver cancer. In order to ensure the happiness of yourself and your family, please pay attention to your health and tell your girlfriend and family to pay attention to disease prevention. At present, the incidence of many diseases is very high, and the onset age is advanced. It is necessary to pay attention to your health. Talk to her parents again so that they don't have to worry too much. I believe that the two old people will not hit Yuanyang if they understand. Finally, I wish you and your girlfriend a happy marriage and grow old together! !
(Well, in the cell biology class, the professor asked us: "There is a young man whose parents have three high diseases and diabetes, and went to his girlfriend's house as a guest. When he came into the room, her parents also took antihypertensive drugs. So, should the lovers go on or say goodbye? Should they have children? " We thought about it and said confidently, "Let's split up!" In exchange, the professor looked speechless: "Why are you so arbitrary? When others come to you for advice, you should analyze the situation clearly and let them make their own decisions. Moreover, if the young couple pay proper attention to each other on weekdays, even if they are sick, their age will be delayed, and then they can cooperate with the medication. After two people have children, even if it is proved that the defective gene is properly controlled, the child will not get sick at an early age, or even get sick, and people will still have a bright future ... "Finally, the professor said with a contemptuous face, how to make prenatal diagnosis for people like you after graduation. . . Haha, this means that compared with cancer, diabetes and three high diseases are more genetically related, and the incidence rate in the population is also more. Everyone should pay attention! )
If you are satisfied with my answer, please adopt it. After all, it is difficult to answer so many words for the first time and catch up with a small paper. .