Can you trust your smartwatch?

Millions of us now use smartwatches to track our sleep, heart rate, fitness and recovery, but how accurate is all that information? This week on The Real Health podcast, Dr Joe Warne from Technological University Dublin explains which measurements we can rely on and where wearable technology falls short. He looks at the growing obsession with health data, why sleep trackers may cause anxiety, and whether more information actually makes us healthier. He also shares the simple metrics worth pay...