Health: Health refers not only to the absence of disease and weakness, but also to a state of physical, psychological and social soundness.
2. Preventive medicine: it is a discipline group that studies the laws of environmental factors affecting health, formulates and implements corresponding public health measures, and achieves the purpose of preventing diseases and promoting health.
Explanation of popular medical terms. Biosphere refers to the part of the earth where normal life exists, specifically from about 12 km below sea level to about 10 km above sea level. Animals, plants and microorganisms live in the atmosphere, hydrosphere, PEDOSPHERE and lithosphere, which is the largest ecosystem on earth.
Interpretation of popular medical terms. Ecosystem: refers to the combination of biology and environment formed by the interaction between human beings or biological communities and the surrounding environment through material exchange and energy cycle. It is the basic unit of function.
Food chain: The relationship between organisms that transfer substances in the form of food. For example, in eat small fish, the chain relationship between a big fish and a small fish eating shrimp is called the food chain.
Ecological balance: refers to a dynamic balance between producers, consumers and decomposers, between biological communities and abiotic environments, between the output and input of matter and energy, the number and quantity of biological populations and the proportion of various populations in the ecosystem.
Interpretation of popular medical terms. Public hazard: refers to serious pollution caused by waste water, waste gas, waste residue or other reasons, which changes the natural environment, thus affecting people's lives, endangering people's health, destroying industrial and agricultural production, even threatening people's life safety and causing public harm to society.
Interpretation of popular medical terms 8 biotransformation: the metabolic change process of pollutants entering organisms under the catalysis of corresponding enzyme systems.
Popular terminology explains preventive medicine 9 Bioaccumulation: the effect that a pollutant enters the organism and gradually accumulates and transfers through the food chain, so that the concentration of pollutants in the organism increases step by step.