Swinton plays a woman dying of cancer in Pedro Almodóvar's The Room Next Door. "A life spent considering how we're going to spend our end is not wasted time," Swinton says.

In order to better understand her circadian rhythm, science journalist Lynne Peeples conducted an experiment in which lived for 10 days in a bunker, with no exposure to sunlight or clocks.

But navigating the expanding world of natural oral care can be overwhelming. With options ranging from charcoal-infused formulas to hydroxyapatite-based pastes, finding the right natural toothpaste ...