OTTAWA, Canada — Even if you’re getting enough sleep overall, inconsistent bedtimes and wake-up times might be putting your heart at serious risk. An international study shows that people with ...

When teenagers shift their sleep schedules between school days and weekends, the resulting mismatch can alter the physical ...

A new study suggests wrist-worn sleep trackers may help predict depression relapse weeks early—explore what this means for ...

(CNN) — Sleeping and waking up at different times is associated with an increased risk of heart attack and stroke, even for people who get the recommended amount of sleep, according to new research.

Poor sleep isn’t just about not getting enough hours. It’s also about when you sleep, how regular your schedule is, and whether your rest gets interrupted. And according to new research from 88,461 ...

A groundbreaking analysis of sleep patterns and metabolic health has revealed a concerning connection between irregular sleep schedules and the development of type 2 diabetes. Drawing from data on ...

The timing of your sleep patterns could be linked to increased dementia risk, according to a new study. Each person's circadian rhythm, often defined as the body's internal 24-hour clock, keeps the ...

Inside every muscle cell, there’s a clock. Not the kind that ticks on your wall or buzzes on your wrist, but a natural timekeeping system that helps your body stay in rhythm. This clock controls when ...

Scientists have long known that what we eat affects our health, but new research suggests that when we eat may be just as ...

In research with children and adolescents, insufficient duration of sleep has been linked to numerous problems in cognitive functioning, emotion regulation, and health. How many hours of sleep they ...