London’s nightlife has been in dire straits since 2008’s economic downturn. Once famed for a decadent club scene, the city has since seen a third of these venues shutter. Mayor Sadiq Khan hopes to reverse the pattern with the appointment of London’s first ‘Night Czar.’

Kids under 18 have been called iGeneration, Gen Tech and "the swipe generation". But with teenagers using less drugs and drinking less alcohol – even though they're less likely to think these substances are harmful – perhaps a more fitting label might be "Generation Straight-Edge."

Energy drink sales are on a caffeine high at $27.5 billion worldwide. But in the depths of Germany's underground scene, naturally caffeinated Club-Mate is the only one to be found in the hands of clubgoers and hackers. How has it won the hearts and minds of the young with barely any advertising?

Underage drinking is a big deal; the average age boys first try alcohol is 11, while for girls it’s 13. But a report has found that consumption of alcohol among German youth – as well as drugs and cigarettes – is at an all-time low. Has 'sex, drugs and rock ‘n’ roll' become a thing of the past?