Ecogenetics
The ecogenetics deals with genetically related modes of reaction of the human organism to physical, chemical and biotic environmental factors.
The central hypothesis of ecogenetics is that the internal biochemical milieu (in physiology inner milieu , from French milieu internal ) - i.e. the genes and the metabolic products induced by them - of an organism determines the response to an environmental factor. She even claims to be able to include psychological and social environmental factors herself.
The method is criticized because there is no adequate methodological approach for the diagnosis of complex human characteristics, which are determined by the interaction of a large number of genes and environmental factors.