Like all other living organisms, people need to multiply in order to exist as a separate species. It would seem that there is nothing complicated in this process, but in reality everything is somewhat different. The fact is that conception can be carried out far from every day, and the subsequent development of the child in the womb is multi-stage and very difficult.
Conception
In fact, fertilization of an egg by a sperm can occur only on certain days. In each menstrual cycle of a woman there are only 1-2 suitable days. Taking into account the fact that sperm cells, before reaching the ampullar part of the fallopian tubes, where the fertilization process takes place, must pass a rather complicated path promising the overwhelming majority of death, the chance of conception is not so high.
After fertilization is nevertheless carried out, the resulting zygote is gradually sent to the uterus. During this journey, a zygote gradually grows. At about 10 days, the embryo enters the uterus, where it enters its wall. After this, the embryo gradually grows and develops. It is worth noting that the first periods of the development of the child in the womb are associated with great risks for him. So human reproduction is a rather complicated multi-stage process.
Childbirth and their danger
One of the climaxes is the birth of a child. It promises a large number of dangers for both the mother and the child. Fortunately, the development of modern medicine allows in almost 100% of cases to save the mother’s life even in the most difficult situations. As for the child, everything is somewhat more complicated with him, but now there are already many different technical means that can help save the life of even the weakest baby. Thanks to this, the reproduction and development of man has become an easier process.
The danger of childbirth is the possibility of damage to the tissues of the mother and child, as well as hypoxia (lack of oxygen). In order to avoid this, gynecologists use special techniques that help the child pass through the birth canal. In extreme cases, a cesarean section is performed.
Demographic issues
Biology can tell how a child develops in the womb and is born. Human reproduction on the scale of the entire species or individual population is studied by demography. It allows you to identify emerging trends in changes in the population and its gender and age composition. This allows you to take the necessary measures.
Today in many developed countries there is a gradual decrease in the number of people. This is due to the fact that human reproduction is subject to a large number of laws and restrictions that each individual person sets for himself. People in highly developed countries prefer to resolve all career issues first and only then think about children. As a result, human reproduction occurs mainly at the age of 30 to 35 years. In addition, the population of such countries prefers to "live for themselves" and have only 1 child.
So, the modern reproduction of man as a species has its own characteristics. Only what time can show what trends are emerging in this area in the future.