This story was originally published on Medical Xpress. Theoretical physics uncovers how our biological clock maintains a consistent 24-hour cycle, even as temperatures change. Credit: RIKEN ...

The article explores the historical roots and practical applications of the 12-hour and 24-hour time formats. Originating ...

Have you ever wondered how your body knows when it's time to sleep or wake up? The simple answer is that your body has a biological clock, which runs on a roughly 24-hour cycle.