Brain training apps claim to make us smarter, but there is no evidence

WOULD you turn down the chance to become a genius? We have long been fascinated by quick fixes that could increase our intelligence, not only in science fiction like Flowers for Algernon and Limitless, but in “smart drugs” like modafinil, a treatment for sleep conditions that some erroneously believe can make us smarter. Today, people’s hopes lie in brain training apps as a speedy “digital pill”, some of which claim to result in “smarter minds”. But is this quick fix all it is cracked up to be?

There are plenty of brain training apps, mostly on smartphones, but they all …