The same genes that lead to a higher level of intelligence among Ashkenazi Jews also lead to higher rates of genetic diseases, a new study found. Because European Jews during the medieval era were restricted to jobs in business — occupations that required greater mental acuity than jobs such as farming — their genetic codes over the course of some generations selected genes for enhanced intellectual ability.
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The Archive of the Jewish Telegraphic Agency includes articles published from 1923 to 2008. Archive stories reflect the journalistic standards and practices of the time they were published.