The Pulse Folgen

What comes to mind when you think of the ocean? Maybe a day at the beach — swimming in the waves, snorkeling through coral reefs, fishing, surfing, and sunsets that kiss the blue horizon. But Earth’s oceans are more than that; they’re our planet’s defining feature, its largest ecosystem, and the original source of all life. On this encore episode, we explore the engine that powers our planet.

We often think of sleep as the gas that keeps us running. We refuel at night — or whenever we can — run around all day until our tanks are empty, and then do it all over again the next day. But some sleep scientists would like us to think about sleep less as fuel, and more as a biological rhythm — one that’s as essential to our overall health as our heartbeat. On this episode, we’ll explore how finding your body’s unique sleep rhythm can help you get better rest.

We’ve only been able to harness the cold for our benefit for a little over 100 years, but innovations like refrigeration and air conditioning have completely transformed the way we live and eat. But it all comes at a cost — and not just financially. On this encore episode, how advances in cold technology have shaped our lives and changed the world.