Post-Ice Age baby boom might have upped your risk for bad genes11/30/2012
Having lots of babies really quickly had an unintended consequence for Americans of European descent — a huge increase in potentially harmful genetic mutations. A new study published in the science journal Nature reports that the population explosion among European people after the Ice Age that led to rich agricultural societies and a whole lot of babies, and now European-Americans have significantly higher rates of genetic mutations than other ethnic groups, such as African-Americans. The research could explain why people develop diseases without having a genetic mutation for it, or why a seemingly healthy person has a heart attack while a lifelong smoker dodges lung cancer. [Source]
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