In his 2015 book Gamechangers, innovation expert Peter Fisk provides 100 case studies of businesses that have won the game, changed the game or even invented their own games via new strategies and innovations – from global giants to small start-ups. So what makes a game changer?

The number of people Googling symptoms and diagnosing themselves has reached worrying proportions, with 20% of Brits now turning to the web rather than visiting a GP. Be Your Own Doctor is a new programme from Channel 4 that wants to help viewers navigate this potentially confusing world.

The Western world is in the grip of an anxiety epidemic, yet while rates of mental illness have surged, health services have struggled to keep up. Could effective care be delivered by an app? That’s the goal of Joyable, which offers CBT treatments to social anxiety sufferers through their smartphones.

BuzzFeed’s cooking channel Tasty is feeding the internet's appetite for comfort food with its immensely popular recipe videos. It’s attracted nearly 62 million likes on Facebook and gained 14 billion video views in just under a year, but what’s the secret to its success?