You’ve probably heard about early birds and night owls. Both are references to sleep chronotypes, or the body’s natural inclination to be awake or asleep at certain times. “Your chronotype is driven ...

UNTIL now, many of us have considered ourselves an early bird or a night owl, but as it turns out, there are actually four types of sleepers – a bear, wolf, lion and dolphin. American sleep expert Dr ...

Chronotypes define individual sleep-wake cycles and peak daily energy periods. Aligning routines with chronotype improves sleep quality and daily productivity. Natural light exposure and consistent ...

AI-generated summary reviewed by our newsroom. Read our AI Policy. Chronotypes define individual sleep-wake cycles and peak daily energy periods. Aligning routines with chronotype improves sleep ...