Preliminary results from a National Institutes of Health study indicate what some of us critics of modern technology long have warned: These blasted hand-held devices are making us dumber.

To quote Bloomberg’s account: “Smartphones, tablets, and video games are physically changing the brains of adolescents, early results from an ongoing $300 million study funded by the National Institute of Health have shown, according to a report by ‘60 Minutes.’ … The first bits of data suggest that the onslaught of tech screens has been transformative for young people — and maybe not for the better.”