There are two purposes of pre-pregnancy preparation: one is to obtain high-quality fertilized eggs, and the other is to obtain the environment inside and outside the uterus where fertilized eggs develop well.
This is the purpose of pre-pregnancy preparation, so we will draw the opposite reasoning. What should we do to get this result:
1. Obtain high quality fertilized eggs.
We infer that in order to obtain high-quality fertilized eggs, then we must meet three conditions:
Sperm quality is better;
The quality of eggs is better;
There is no loss of sperm quality during fertilization;
If we want to get high-quality sperm, we must reduce many unfavorable factors in the process of sperm production to the lowest and raise many favorable factors to the highest.
How to improve sperm quality, I have explained in many chapters, such as less sperm and weak sperm. Sperm continues to grow and mature, and a sperm maturation cycle is about 100 days, more than three months, strictly speaking, four months.
To ensure the normal growth of sperm, at least, this person's reproductive system is normal. Let me emphasize again that the reproductive system has nothing to do with the kidney, and the kidney has nothing to do with sexual ability. Blindly advocating tonifying kidney is based on a backward concept and wrong understanding.
Secondly, it is necessary to ensure that his endocrine system has normal sexual function, and there are no diseases and chronic diseases of important organs in the whole body. Usually, these organ diseases and chronic diseases have little influence on reproductive function, which is due to the perfect positive correlation between reproductive system and physical health. But if some diseases that affect health are cured, the quality of sperm will definitely be greatly improved.
This is about health. In other words, to improve sperm quality, physical health is the first priority, and physical health is not healthy, which needs to be determined through physical examination.
Then the second is the genetic situation of the family, to see if there is any risk of genetic diseases. Most of this genetic disease is invisible to the naked eye and has little to do with a person's health, but there are clues of genetic disease in the family. A healthy person may have a serious genetic disease gene, and a person who looks sick may not have any genetic disease. Whether a person has a genetic disease, first of all, genetic counseling, followed by genetic disease examination.
The third factor affecting sperm quality is the environment. Of course, for some people, the environment is the primary factor leading to the decline of sperm quality.
The environment is very wide, including physical high temperature, radiation, electromagnetic radiation, etc. Drugs, pesticides, heavy metals and other chemicals. , human-made100000 kinds of chemicals, of which more than 40000 kinds have reproductive toxicity and embryonic toxicity. Bad occupational factors, bad hobbies, family pollution and decoration pollution are all environmental problems that can cause sperm damage.
The fourth place is diet. The principle of diet is moderate and balanced nutrition. Any vitamins, trace elements, macroelements, minerals, sugar, fat and protein should not be too much or too little, let alone unbalanced. Zinc deficiency should be supplemented with zinc-rich foods, iodine-rich foods and calcium-rich foods. However, we must pay attention to their excessive side effects and antagonistic effects after supplementation, such as calcium supplementation. Calcium has competitive inhibition on phosphorus, magnesium, zinc and iron. , especially phosphorus. The total contents of calcium and phosphorus in the body are the same. Adults need calcium 1.3g, 0.66g and 0.64g daily. If you don't know the actual situation of elements in the body, you will blindly supplement them. In this way, if there is more calcium, phosphorus will be reduced because of competition inhibition.
The fifth influence on sperm is age, and the influence of age is the decrease of spermatogenic ability and sperm cell apoptosis rate. Sperm cell apoptosis is a process of programmed death and active "suicide" of sperm, and it is a protective reaction for the human body to ensure that the damaged sperm DNA is not passed on to the next generation, so that those unhealthy or damaged sperm enter the process of self-destruction and self-apoptosis.
Sperm, the ability of apoptosis, decreases with age. Studies have shown that at the age of 60, the number of unhealthy and DNA-damaged sperm increased to about 85%, apoptosis decreased and sperm quality decreased.
Mainly these five aspects. These five aspects are done well, and the quality of sperm is generally guaranteed.
For eggs, to obtain high-quality eggs, similarly, women have no major gynecological diseases, and normal endocrine is the most important; For women with normal endocrine, the menstrual cycle is relatively stable, that is, relatively regular. After B-ultrasound examination, follicles developed rapidly and fully, so the quality of eggs was better.
Need to be reminded that women basically ovulate alternately from left to right, this month is the left side, next month is the right side, and so on; However, for some women, the cycle of both ovaries is not the same. Some people are obvious. The left ovulation cycle is 28 days, and the right ovulation cycle is 36 days. These situations exist. If this continues for 28 days, 36 days, 28 days and 36 days, it is also regular.
But after women have sex, there are fewer gynecological diseases. Gynecological diseases have certain adverse effects on eggs and fertilized eggs, so we should try our best to cure them before pregnancy.
The second factor affecting the quality of eggs is age. Women's follicles are carried in the body from the fetal period, and they have to accompany women for 20, 30 and 50 years. The older a woman is, the greater the possibility of accidents during meiosis and fertilization. The quality of eggs declines with the increase of women's age, which requires women to get married and have children between the ages of 24 and 29, and don't increase the difficulty and danger of giving birth because they are busy with their careers.
The third factor that affects the quality of eggs is mental and psychological factors, which can change the menstrual cycle. As we all know, ovulation is greatly influenced by the change of menstrual cycle. Irregular ovulation often leads to poor egg quality.
The fourth influencing factor is still physical, chemical and biological factors. Because women's primary oocytes have been under the protection of ovarian blood-egg barrier, they have entered a dormant period and have little metabolism. Therefore, the primary oocytes protected by ovarian blood-egg barrier are rarely affected by adverse factors such as environment. However, before the primary oocytes develop into dominant follicles, they will leave the blood-egg barrier about 4 months in advance and migrate to the ovarian surface. After leaving the barrier, its metabolism will also accelerate and its position will become shallower. At this time, it will be affected by factors such as environment and drugs.
The fifth factor affecting the quality of eggs is malnutrition and improper diet, which is mainly caused by unbalanced and unsafe diet. Obesity can cause endocrine changes, so it has a greater impact on eggs.
As long as we pay attention to these factors, the quality of sperm and eggs can be guaranteed.
High quality of fertilized eggs means high quality of sperm eggs, but high quality of sperm eggs does not mean high quality of fertilized eggs.
As for the reason, we have said it several times before, because the timing of ovulation is very important. Eggs began to lose their quality 6 hours after ovulation, and lost their fertilization ability about 15 ~ 18 hours after ovulation. Sperm quality began to decline 24 hours after entering the female reproductive tract, and basically lost fertilization ability within 45-48 hours in after ejaculation. Therefore, if the time is well grasped, the quality of sperm and eggs will not be damaged or reduced, and it is not well grasped. Although the quality of some sperm eggs is already very good in the pre-pregnancy preparation stage, the fertilized eggs will die immediately or soon after fertilization, which is caused by the quality loss of sperm eggs before fertilization.
Therefore, in order to obtain high-quality fertilized eggs, we should make careful preparations before pregnancy, carefully grasp the first 6 hours after ovulation under the guidance of professional doctors, and fertilize the sperm eggs within 6 hours after fresh ovulation.