Social media use is more common than ever, with over 2 billion of us signed up, but do we know what it's doing to our brains? We're exploring how this exploding trend is influencing our opinions and our wellbeing, and also how it could be used as a tool to diagnose mental illness. Plus, news of a breakthrough in Huntington's Disease research and a celebration of 50 years since the spooky radio signals that changed astronomy forever.Find more episodes and transcripts at www.nakedscientists.com