Too much variation in your bedtime, wake-up time, and sleep duration may increase your heart disease risk, according to one study. Researchers found that people with the greatest irregularities in ...

People who go to bed at wildly different times each night face roughly double the risk of a heart attack or other serious ...

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 new study to be presented at the SLEEP 2026 annual meeting found that irregular sleep - including variability in sleep timing and duration - was associated with lower receptive vocabulary and ...

An irregular bedtime in midlife may signal an increased risk of cardiovascular disease. A new study from the University of Oulu suggests that large swings in when people go to bed could double the ...

Patients who are operated on by surgeons with irregular sleep patterns are at significantly higher risk of severe postoperative complications, regardless of the total duration of the doctor's sleep ...

Previous research has analyzed variations in sleep patterns including number of hours slept, quality of sleep, and sleep-wake times, and found an association with cognitive impairments, health and ...

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 ...

Researchers at the Yong Loo Lin School of Medicine, National University of Singapore (NUS Medicine), have found that insufficient weekday sleep significantly disrupts glucose metabolism even when ...