The multimedia artist talks about his cinematic timepiece, a 24-hour film comprised of scenes from movies and TV that track ...

That’s one of the concepts bubbling through The Clock a one-of-a-kind, 24-hour video essay. Director Christian Marclay (plus a team of researchers) compiled thousands of film clips involving ...

Researchers have identified a second dopamine-driven "clock" in the brain that works alongside the biological 24-hour cycle, ...

New research suggests that mood swings in bipolar disorder are regulated by two clocks: the body’s 24-hour circadian rhythm ...