"Staying on standard time year-round is much better," biologist Carla Finkelstein told Newsweek about the increasingly controversial practice.

Melatonin is a hormone in the brain that maintains your body's circadian rhythm, and therefore, regulates sleep. Taking ...

Circadian rhythms are endogenous time-keeping mechanisms that regulate physiological processes in response to external ...

Daylight saving time begins Sunday, March 9, with clocks rolling forward one hour at 2 a.m. With the change, it will stay ...

Circadian rhythms are endogenous time-keeping mechanisms that regulate physiological processes in response to external light-dark cycles.