Log in
Hygiene · Introduction. Subject, history, modern environment

Environment and human health

Environmental quality and public health are inextricably linked. The historical evolution of hygiene shows how society moved from intuitive sanitary measures to strict scientific regulation of environmental factors to prevent mass diseases.

Dangerous water supplyLead pipes and tableware in Rome caused mass chronic intoxication among the patricians.
The price of dogmasThe rejection of bodily cleanliness in the Middle Ages triggered epidemics of plague, cholera, and leprosy.
The core principleHygiene science must always outpace technological progress.
The basis of standardsThe transition to experimentation made it possible to establish scientifically grounded hygienic standards.
4 min readFor medical studentsUpdated Sep 25, 2026
Material prepared by WhiteCoat Pro editorial team based on platform study guidesReviewed by medical editor: Aulov A. A., general practitioner · 09/24/2026

From Antiquity to the Middle Ages

Ancient medicine laid the foundational concepts of a healthy lifestyle (it is no coincidence that the bowl with the snake of the god Asclepius became the universal emblem of medicine, and the term originates from the goddess Hygieia). The Roman Empire adopted this knowledge, deploying large-scale construction of bathhouses, sewage systems, and aqueducts. However, a dangerous historical paradox manifested even then: sanitation outpaced hygienic knowledge. The Romans used lead for pipes and tableware glaze, unaware of its toxicity. The result was mass chronic lead poisoning.

The feudal era (6th–14th centuries) in Europe turned into stagnation. Dominant religious dogmas urged caring only for the purity of the soul. Total neglect of hygiene led to devastating epidemics of typhus, syphilis, cholera, and plague. Cities were drowning in waste — for instance, the Paris of that era was called the "city of mud" due to the habit of dumping sewage onto the streets. During the same period in the East, the physician Ibn Sina (Avicenna) attempted to preserve and systematize the rules of housing hygiene, nutrition, and child-rearing in his work The Canon of Medicine.

Urbanization and the birth of occupational medicine

With the development of capitalism in the 18th and 19th centuries, a rapid growth of manufactories and cities began. Population crowding led to a sharp spike in morbidity. Mass occupational pathology among workers formed under unbearable sanitary and hygienic conditions.

The foundation for solving these problems was laid in 1700 by the Italian physician Bernardino Ramazzini. His encyclopedic work De Morbis Artificum Diatriba (Diseases of Workers) detailed for the first time the treatment and prevention of ailments in representatives of over 50 professions (from miners to gilders). Early capitalism also brought other negative factors: social stressors, initial environmental pollution by industrial waste, and hypokinesia due to partial labor automation.

Test your knowledge on the topicTasks from the Hygiene course question bank — answer and detailed explanation provided immediately.

The emergence of experimental hygiene

Since epidemics did not distinguish between classes and struck both workers and the bourgeoisie, society realized the economic damage caused by diseases. The ancient precept transformed into a pragmatic principle: "Prevention is better than cure".

True prevention required precise laboratory data. Experimental hygiene emerged, relying on chemistry, physics, and microbiology. Outstanding scientists (Max Pettenkofer in Germany, Edmund Parkes in England, A.P. Dobroslavin and F.F. Erisman in Russia) began meticulously studying environmental objects:

  • Air, water, and soil.
  • Housing conditions.
  • Clothing and foodstuffs.

The main practical result of this work was the development of strict hygienic standards.

The scientific and technological revolution and environmental crisis

By the end of the 19th century, the successes of hygienists had reliably reduced mortality. But the 20th century brought a new threat — the ruthless exploitation of nature. Environmental degradation in industrialized countries created a global hazard for the biosphere.

Industrial pollution critically worsened living conditions:

  1. Atmosphere: Megacity air became toxic (traffic police officers in Japan were forced to wear gas masks).
  2. Hydrosphere: Drinking water became impossible to consume without complex special treatment.
  3. Nutrition: Growing food in contaminated soils became hazardous to health.

Society reacted to the crisis in the 1970s–1980s by publishing resonant scientific literature (Silent Spring by Rachel Carson, The Limits to Growth by Donella Meadows), which helped shift the situation for the better. The main conclusion for modern science: hygiene must develop ahead of the curve to ensure technological progress remains safe for humans.

Briefly: answers to topical questions

What specific infectious diseases raged during the medieval unsanitary crisis in Europe?

During the feudal era in Europe (6th–14th centuries), total neglect of hygiene led to devastating epidemics of plague, cholera, leprosy, typhus, syphilis, and other infectious diseases that claimed the lives of entire urban populations. In the 14th century, the plague in Europe claimed 25 million lives, i.e., a quarter of the entire population.

How to memorize

The Rome paradox: sanitation (laying pipes) outpaced hygiene (knowledge about the toxicity of lead). Rule: engineering solutions must always follow medical knowledge, not vice versa.

Class and exam questions

Why did the water supply system in Ancient Rome cause mass illnesses?

Lead was used to make pipes. Due to a lack of hygienic knowledge, people did not understand that water leaches the heavy metal, leading to chronic intoxication.

Who is considered the founder of occupational medicine?

Italian physician Bernardino Ramazzini. In 1700, he published a work detailing occupational diseases in representatives of over 50 crafts and methods for their prevention.

What is the essence of the fundamental principle of modern hygiene?

Hygiene science must develop proactively, outpacing technological progress. This is the only way to forecast and prevent the negative impact of new technologies on the biosphere.

Something unclear? Ask the AIThe AI tutor has read the material on "Environment and Human Health" and will explain it in simple terms.

What else to study on this topic

  • The contribution of Abu Ali Ibn Sina (Avicenna) to the development of personal hygiene rules
  • The specifics and unique developmental path of domestic hygiene
  • The methodological base of laboratory studies of environmental factors
  • The impact of hypokinesia and social stressors in the era of early capitalism

Master the entire topic in the "Hygiene" course

This is a summary. The course covers everything tested in classes and exams.

  • The complete study guide on "Environment and Human Health" and 530 more pages of the subject
  • Assignments and quizzes after every topic — just like in a colloquium
  • AI tutor answers questions on the topic anytime
  • 95 video lessons for the subject

Other topics in the section "Introduction. Subject, History, Modern Environment"

The entire section "Introduction. Subject, history, modern environment"

Prepared by WhiteCoat Pro faculty in accordance with the medical school curriculum. For educational purposes only.