DNA-mutations-poor-health-make-stupid.html?ITO=1490&ns_mchannel=rss&ns_campaign=1490

A study found smart people have fewer genetic mutations that negatively affect intelligence and health, rather than having more mutations that make them smarter. Scientists said the results could be used to guide gene editing - as'fixing' these mutations could make people healthier and smarter at the same time. The researchers used statistical techniques to work out the effect of rare genetic mutations on intelligence. The rare genetic mutations studied by the researchers are thought to have a negative impact on intelligence and health.