Dysgenics is the study of factors producing the accumulation and perpetuation of defective or disadvantageous genes and traits in offspring of a particular population or species. The adjective "dysgenic" is the antonym of "eugenic". It was first used by David Starr Jordan, describing the supposed dysgenic effects of World War I. Jordan believed that healthy men were as likely to die in modern warfare as anyone else, and that war killed only the physically healthy men of the populace whilst preserving the disabled at home . Richard Lynn in his Dysgenics: Genetic Deterioration in Modern Populations (1996) identified three main concerns: deterioration in health, in intelligence, and in conscientiousness. Peter Hitchens and the death of Britain in the First World War – https://www.youtube.com/watch?v=PMy86XCm9ls
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