The Institute of Advanced Motorists in the UK has carried out live tests which prove that using smartphones impairs driving ability more than drug or alcohol use, making reaction times 37.6 percent slower (PDF). The result is a big concern since a quarter of drivers admit to sending texts from their phones while driving. 'Young people have grown up with smartphones and using them is part of everyday life. But more work needs to be done by the government and social network providers to show young people that they are risking their lives and the lives of others if they use their smartphones while driving.'"