Multiple large-scale studies reveal that irregular sleep timing in midlife can significantly raise the risk of heart attacks, strokes, and other cardiovascular events, even when sleep duration is ...

A study funded in part by the National Heart, Lung, and Blood Institute found that older adults with irregular sleep patterns ...

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 ...

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 ...

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 ...

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 ...