While serotonin levels can dip and melatonin levels increase when there is less daylight (which can lead to low mood and ...

Another key psychological mechanism contributing to sleep procrastination is delay discounting; the favouring of immediate ...

REM stages and one REM stage. Ideally, you repeatedly cycle through each stage. Learn how long each stage lasts.

Five minutes, one last look at the phone, and I'll fall asleep. It doesn't happen. Those minutes often turn into an hour or ...

A Senate committee hearing has been set to discuss daylight saving time. Could it be a sign that Congress is setting its sights on the twice-a-year practice?

The Hatch sunrise alarm clock and noise machine stopped me from hitting 'snooze' and turned me into an early riser.

Age and social jetlag demonstrate a significant negative association, suggesting a balancing of social and biological clocks upon retirement.

As summer fades into autumn, most Australian states and territories will set their clocks back an hour as daylight saving ...

Congress will hold its first hearing in more than three years on a long-running push to make daylight saving time permanent ...

Siffre’s story started in 1939, in Nice, on the Mediterranean coast of France – but it wasn’t until 1962 that the events that ...

Louisville moved to Eastern time in 1961. The change was meant to benefit local businesses, as well as residents who could work or play later in sunlight.

Waking up tired or wired? Your circadian rhythm could be off. Reset your internal clock with science-backed habits for deeper ...