"Eugenics deals with race improvement through heredity.
Euthenics deals with race improvement through environment.
Eugenics is hygiene for the future generations.
Euthenics is hygiene for the present generation.
Eugenics must await careful investigation.
Euthenics has immediate opportunity.
Euthenics precedes eugenics, developing better men now, and thus inevitably creating a better race of men in the future. Euthenics is the term proposed for the preliminary science on which Eugenics must be based."
Ellen Swallow Richards (1910)[1]
Euthenics (/juːˈθɛnɪks/) is the study of improvement of human functioning and well-being by improvement of living conditions.[2] "Improvement" is conducted by altering external factors such as education and the controllable environments, including environmentalism, education regarding employment, home economics, sanitation, and housing, as well as the prevention and removal of contagious disease and parasites.[citation needed]
In a New York Times article of May 23, 1926, Rose Field notes of the description, "the simplest [is] efficient living".[3] It is also described as "a right to environment",[4] commonly as dual to a "right of birth" that correspondingly falls under the purview of eugenics.[5]
Euthenics is not normally interpreted to have anything to do with changing the composition of the human gene pool by definition, although everything that affects society has some effect on who reproduces and who does not.[6]
EllenSwallowRichards
was invoked but never defined (see the help page).