The annual update of the Doomsday Clock was announced at 10 a.m. this morning in Washington, DC. The Bulletin of the Atomic Scientists announced that the Doomsday Clock this year was set to 90 seconds ...

We might not think of our circadian clock until we are jetlagged, but scientists continue to puzzle over what drives our biological timepiece. Now, a study published October 20 in Cell Metabolism has ...

A new book explores what makes our internal clocks tick and how we can reset them for the better. Science journalist Lynee Peeples spoke with some 240 scientists, chronobiologists, athletes, ...