Diet, exposure to toxins, pathogens, radiation, and chemicals found in almost all personal care products and household cleaners, stress, racism, and physical and mental abuse are causes of a large segment of non-hereditary disease.
If a disease process is concluded to be the result of a combination of genetic and environmental factor influences, its etiological origin can be referred to as having a multifactorial pattern.
Some of these risk factors, for instance, air-pollution, are well known, while others such as altered microbial exposure are less familiar to the general public.
[5] On the other hand, urban areas, compared to their rural counterparts, lack diverse microbial communities, which can help prevent the development of asthma.
However, recent research shows that increased access to healthcare weakens the urban association with these diseases,[7] and the net effect is still unclear.
[8] Increased levels of stress, air & light & noise pollution, and reduced "green" space are all urban-associated environmental effects that are adversely linked to mental health.
[10] Additionally, there are environmental diseases caused by the aromatic carbon compounds including : benzene, hexachlorocyclohexane, toluene diisocyanate, phenol, pentachlorophenol, quinone and hydroquinone.
[citation needed] Also included are the aromatic nitro-, amino-, and pyridilium-deratives: nitrobenzene, dinitrobenzene, trinitrotoluene, paramethylaminophenol sulfate (Metol), dinitro-ortho-cresol, aniline, trinitrophenylmethylnitramine (tetryl), hexanitrodiphenylamine (aurantia), phenylenediamines, and paraquat.