Health effects, health impacts or health risks are changes in health resulting from exposure to a source. Health is a state of complete physical mental and social well-being and not merely the absence of disease or infirmity Health effects are an important consideration in many areas, such as hygiene, pollution studies, workplace safety, nutrition and health sciences in general. Hygiene refers to practices associated with ensuring good health and cleanliness Pollution is the introduction of contaminants into an environment that causes instability disorder harm or discomfort to the physical systems or living organisms they are in Workplace safety is a category of Management responsibility in places of employment Nutrition (also called nourishment or aliment) is the provision to cells and Organisms of the materials necessary (in the form of food to support Health science is the applied science dealing with Health, and it includes many sub disciplines Some of the major environmental sources of health effects are air pollution, water pollution, soil contamination, noise pollution and over-illumination. Air pollution is the human introduction into the atmosphere of Chemicals Particulate matter, or Biological materials that cause harm or discomfort Water pollution is the contamination of Water bodies such as Lakes Rivers Oceans and Groundwater caused by human activities Soil contamination is caused by the presence of man-made chemicals or other alteration in the natural soil environment Noise pollution (or environmental noise) is displeasing human- or machine-created sound that disrupts the activity or balance of human or animal life Over-illumination is the presence of lighting intensity ( Illuminance) beyond that required for a specified activity
A non-stochastic or deterministic health effect has a severity that is dependent on dose and is believed to have a threshold level for which no effect is seen. Stochastic (from the Greek "Στόχος" for "aim" or "guess" means Random. Stochastic health effects occur by chance, generally occurring without a threshold level of dose, whose probability is proportional to the dose and whose severity is independent of the dose, such as cancer and genetic effects. Probability is the likelihood or chance that something is the case or will happen Cancer (medical term Malignant Neoplasm) is a class of Diseases in which a group of cells display uncontrolled
See also
Sources
A material safety data sheet ( MSDS) is a form containing data regarding the properties of a particular substance A risk factor is a variable associated with an increased risk of Disease or Infection. A health effector is a thing that can positively or negatively influence one's Health.Dapyx Software network: MP3 Explorer | Ebook Manager | Zenithic