Eugenics is a complex and controversial field of knowledge that has historically been concerned with improving the hereditary qualities of a person. Originating in the late nineteenth century, it sought to apply the biological laws of selection to human society. Many researchers of the time believed that a rigorous scientific approach could lead to the “ideal” person, free from disease and social vices.
But the path of this science has been full of ethical pitfalls and tragic mistakes. Genetic material The human condition was much more complex than the first theorists had assumed. Instead of the expected prosperity of humanity, eugenic programs in a number of countries have led to massive human rights violations, forced sterilization and even genocide. Today, the attitude to this discipline has changed dramatically, but the questions it raised have not gone away.
In the modern world, the debate has shifted to the plane of molecular biology and genome editing. CRISPR-Cas9 And other technologies allow us to interfere with the DNA of embryos, which revives old debates about the admissibility of such manipulations. Understanding what eugenics has done in the past is critical to shaping the ethical framework for future biotechnology.
Definition and main goals of eugenics as a science
In the classical sense, eugenics is defined as the doctrine of ways to improve the hereditary properties of a person. The term comes from the Greek word eugeneswhich means “good kind” or “noble.” The founder of this movement, Francis Galton, a cousin of Charles Darwin, believed that intelligence and moral qualities are inherited in the same way as physical traits in animals.
The main goal of eugenics was to increase the proportion of “favorable” genes in the population and reduce the proportion of “adverse” genes. To achieve this, two main ways were proposed: positive and negative selection. Positive eugenics It encouraged the reproduction of people with desirable traits, such as high intelligence or no inherited diseases.
The negative side of the teaching was aimed at preventing the birth of children with undesirable characteristics. This could include marriage restrictions, isolation, or forced sterilization of carriers of certain genetic markers. The key difference between eugenics and modern genetics is the emphasis on social engineering rather than individual treatment.
- 🧬 The study of the heredity of human characteristics and their transmission from generation to generation.
- 📊 Development of statistical methods for assessing the quality of the gene pool of various social groups.
- ⚖️ Establishing legal and social mechanisms for birth control based on biological data.
It is important to understand that at the beginning of the XX century, genetics as an exact science has not yet formed. Scientists relied on observations and statistics, often drawing incorrect conclusions. For example, poverty or criminal behavior were mistakenly considered purely biological problems, ignoring the influence of environment and upbringing.
Historical Stages of the Eugenics Movement
The history of eugenics is divided into several distinct periods, each characterized by its level of scientific understanding and social aggressiveness. The movement peaked in the first third of the twentieth century, when eugenic societies existed in many developed countries, including the United States, Britain and Germany.
The first phase, often referred to as the “classic” phase, was characterized by active lobbying for sterilization laws. In the United States, such laws have been passed in dozens of states and affect thousands of people deemed “mentally retarded” or “socially handicapped.” These measures were considered progressive and scientifically sound for their time.
The second stage was associated with Nazi Germany, where the ideas of eugenics were brought to an extreme degree of cruelty. Programme T4 And the subsequent actions led to the destruction of millions of people. After World War II, eugenics as a social movement was discredited and condemned by the international community.
⚠️ Historical eugenics programs have often been based on racist and class prejudices rather than objective scientific evidence. Modern science categorically rejects the division of people into “higher” and “lower” races.
The third, modern stage, is sometimes called the “new eugenics” or liberal eugenics. It is associated with the development of genetic engineering and reproductive technologies. Here, the emphasis shifts from state coercion to the personal choices of parents who use PGD (preimplantation genetic diagnosis) to rule out severe diseases.
Methods and tools of eugenic selection
Eugenics methodology ranged from mild social pressure to gross state violence. The tools depended on the political regime and the level of development of medicine in a particular country. The main data collection tools were genealogical trees and psychometric tests.
One of the key methods was segregation. People with certain diagnoses were placed in special institutions, where they were isolated from society. This prevented their genes from being passed on to the next generation. In some cases, chemical or surgical sterilization was used, often without the informed consent of the patients.
With the development of technology, more subtle methods have appeared. Genetic counseling has become a form of "soft" eugenics, where a doctor may recommend a couple not to have children because of the high risk of an inherited disease. Also used methods of prenatal diagnosis, allowing to identify fetal pathology in the early stages.
- 🏥 Forced sterilization of persons recognized as carriers of defective genes.
- 📝 Maintaining state registers of hereditary diseases and social characteristics.
- 💰 Financial incentives for large families with a “good” heredity.
- 🚫 Legal prohibitions on marriages between close relatives or people with certain diagnoses.
Today, the most common method is preimplantation genetic diagnosis (PGD). In vitro fertilization (ECO) embryos are tested for mutations. Parents can choose to implant an embryo without severe genetic defects.
What is gamete cryopreservation?
Cryopreservation is a method of freezing eggs or sperm at ultra-low temperatures. This allows the genetic material to be preserved for many years and used for conception in the future, which is also part of reproductive technologies related to heredity planning.
The relationship of eugenics with genetics and biology
The relationship between eugenics and genetics is complex and dramatic. Eugenics began before DNA was discovered, and for a long time relied on Mendel’s laws, which were often applied in a simplistic way. Many eugenicists were sincere scientists who sought to improve the health of the nation, but their tools were crude.
Modern molecular genetics has shown that most human qualities, such as intelligence or character, are polygenic. This means that they are responsible for hundreds or thousands of genes that interact with the environment. Simple selectionLike dogs or plants, it doesn’t work here.
However, the line between treating genetic diseases and “improving” a person is getting thinner. Genome editing technologies, such as CRISPRIt allows you to make changes to the germline. This means that the changes will be passed on to all human descendants, which raises the same questions that eugenics has raised.
| Characteristics | Classical eugenics | Modern genetics | The New Eugenics (Bioethics) |
|---|---|---|---|
| Basic method | Sterilization, isolation | DNA analysis, therapy. | Gene editing, PGD |
| Purpose | Improving the gene pool of the nation | Treatment of diseases | Choosing desired traits |
| Agent of Change. | State | Doctor/Scientist | Parents/Individual |
| Attitudes to diversity | Declining diversity | Health preservation | The risk of creating inequality |
Geneticists today are trying to distance themselves from the term eugenics, preferring to talk about preventive medicine. But fear of a resurgence of eugenic practices remains a powerful regulator in bioethics. International conventions strictly regulate experiments with the human genome.
Ethical Problems and Criticism of Eugenic Ideas
The critique of eugenics is fundamental and concerns basic human rights. The main argument of opponents is that no one has the right to decide whose life is worthy of continuation and whose life is not. The right to reproduction It is one of the fundamental rights of the individual in a democratic society.
Another major problem is the definition of “normality”. Who decides which traits are desirable and which are defective? In the past, even left-handedness or low height were considered “defects”. In the future, people with low IQ or a certain eye color may be at risk if society decides that this is not desirable.
⚠️ Attention: Eugenic programs inevitably lead to discrimination against vulnerable groups and to violation of the principle of equality of all people before the law.
Social inequality is another aspect of criticism. If human “improvement” technologies become paid, society could split into genetically modified elites and ordinary people. This will create a new form of biological caste, which will be almost impossible to overcome.
☑️ Ethical Criteria for Genetic Intervention
There is also a risk of unpredictable consequences for the gene pool. Removing certain genes can have hidden negative effects in the long run. Genetic diversity is an insurance against extinction when environmental conditions change.
Current status and future of genetic planning
Eugenics as a state ideology is banned and condemned. However, some of its elements have been transformed into the sphere of personal responsibility and medicine. Parents are increasingly using genetic testing in family planning to avoid transmission of severe inherited diseases.
The future of this field is tied to the development of personalized medicine. Gene therapy is expected to become the standard treatment for many congenital pathologies. The only question is where the line between treatment and enhancement will be. GMO people This is not a fantasy, but a real prospect for the coming decades.
When studying the history of eugenics, always check the sources and year of publication. Many modern pseudoscientific theories masquerade as “new eugenics” using outdated or distorted data.
The international community continues to develop rules governing these processes. UNESCO and WHO have issued declarations banning human cloning and germline editing for purposes other than the treatment of diseases. Science is moving faster than legislators can make laws.
Ultimately, society faces a choice: use the power of genetics only to alleviate suffering, or let the market and personal preferences dictate human evolution. The responsibility for this choice lies not only with scientists, but with each of us.
Modern science rejects the idea of “improvement” of the human breed through breeding, focusing on treating diseases and preserving genetic diversity.
What is the main difference between eugenics and modern genetics?
Eugenics focuses on population selection and often uses coercion to achieve social goals. Modern genetics is engaged in the study of the mechanisms of heredity and the treatment of individual diseases, prioritizing the rights of the patient.
Why was eugenics popular in the early twentieth century?
At that time, there was a belief in the boundless power of science and progress. The discoveries in animal and plant breeding have created the illusion that the same techniques can be easily applied to humans for the rapid improvement of society.
Is eugenics banned in the modern world?
Eugenics as a state policy and ideology is prohibited by international law and condemned after World War II. However, some technologies that originated in its framework (genetic testing) are used in medicine with ethical limitations.
Can eugenics return in a new form?
There is a risk of so-called “liberal eugenics,” where choosing the “best” genes becomes a matter of personal consumption and parental wealth, which could lead to new social inequalities.