Isyoursmartphonemakingyoustupid?Canyoumakeyourselfcleverer?TheGreatBritishIntelligenceTestmeasuresthebrainpowerofthenationinoneofthelargestintelligenceexperimentsofitskind. DevisedwithleadingscientistsatImperialCollege,London,over250,000peoplearoundthenationhavetakenpartsofar-revealingimportantnewscienceaboutthenation’s...
