If you've ever wondered why your mood seems to dip late at night, a groundbreaking study has the answer. Devastating ...

It might be time to take a page out of a rooster’s book. Recent research helps explain why those of us who prefer to stay up late reap an unpleasant reward.

As part of Update 1.05.0, an in-game event was added to Grow a Garden, introducing the Wise Old Owl and Lunar Glow Event. In ...

Using boxes installed on vines, researchers had an idea to put GPS tracking devices on the owls to study their behavior.

Airbnb founder Brian Chesky's night owl routine includes an 8 p.m. workout and then working from 10 p.m. until around 2:30 ...

When you need sleep depends on what’s called your chronotype—your body’s natural inclination towards certain times of day.