The way you sleep each night creates a detailed blueprint of your cardiovascular health, potentially revealing stroke risk with remarkable precision years before any symptoms develop. Your sleep ...

Like many Americans, I know I need more sleep. I'm a night owl, often writing late into the night, but also a mom who gets up early with her kids. The result: I'm not getting enough rest.

(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.

A new international study drawing on 73 million nights of data reveals that our sleep patterns are seriously shaped by the day of the week, the season, and where we live. Working with sleep data from ...