Hygiene and medical ecology

The textbook of hygiene and medical ecology is addressed to medical and dental students.
Hygiene is a medical prevention science that studies the relationship between :he environment and humans from the point of view of the correct development, preservation, and improvement of human health and so that active longevity can be ensured.
The aim of hygiene is to study the effect of all environmental factors and working conditions which lead to health disturbances and decrease the work¬ing capacity. Hygiene investigates the positive effects of the environmental and social factors, which lead to health promotion. Hygiene is the science which de¬velops and applies norms, standards and recommendations. The purpose is to optimize the human and environmental system.
Ecology' is the science of interrelationships in the natural environment: the dependency of one organism on another, and the ultimate dependency of all, in¬cluding man, on the various components of the physical environment.
The textbook is conformable to the teaching program of medical and dental students. In the book are included materials from different parts of hygiene - communal hygiene, hygiene of nutrition, occupational medicine, childhood and adolescent hygiene and ionizing radiation hygiene.
We hope that this textbook corresponds to the contemporary requirements and knowledge in the field of the hygienic science and that it will be useful for medical and dental students. The authors will gratefully accept all critical notes, opinions and recommendations.