Will Blunderfield grew up, he says, an unhappy, unhealthy kid. Now he feels great — as a “wild naked man” who drinks his own urine. Across the world, wellness is a multi-billion pound industry, even though some of its practices are unproven, extreme or even harmful. So why are so many people unimpressed with what 21st century medicine can offer them, and turning to internet gurus instead?The New Gurus is a series about looking for enlightenment in the digital world.Written and presented by Helen LewisSeries Producers: Morgan Childs and Tom Pooley
Story consultant: Geoff Bird 
Original music composed by Paper Tiger
Sound design and mix: Rob Speight
Editor: Craig Templeton SmithA Tempo &amp; Talker production for BBC Radio 4 and BBC Sounds

New Gurus: 3. Fitter, Happier, More Productive

Helen Lewis Has Left the Chat. Have you ever been trapped in a group chat nightmare, either grabbing the popcorn or wondering how to leave without causing a scene? Who's the admin in your family group, and do they wield that power responsibly? Do you ever wonder if it's appropriate to use emojis when talking to your boss? The rise of instant messaging has made our social and professional lives faster, more casual — and more chaotic. But amid all the discussion of the effects of public social media, such as Facebook and Twitter, there has been relatively little attention paid to private social networks—the direct message and the group chat — and how they are shaping our relationships and our world. In this series, Helen Lewis looks at the secret world of instant messaging, meeting a woman who married a chatbot, discovering how Russian dissidents are fighting a propaganda war, and hearing the inside story of how Britain ended up governed from a single WhatsApp group. It's a strange new world where workplace rebellions are conducted through duelling emojis and military secrets are traded on chat forums about a children's cartoon. It's also a world where you can never be quite sure who you're talking to—and who's eavesdropping on you.