Eine neue Studie legt nahe, dass große Schwankungen beim Schlafengehen das Risiko schwerer Herzereignisse verdoppeln könnten – insbesondere bei Menschen, die weniger als acht Stunden schlafen. Im Gegensatz dazu zeigten unregelmäßige Aufwachzeiten keinen eindeutigen Zusammenhang mit kardialen Ereignissen

The researchers found that inconsistent bedtimes and greater variability in sleep timing were strongly associated with a higher risk of major cardiovascular events, especially when measured time in bed fell below eight hours. In this group, the risk was roughly twice that of people with more regular sleep patterns. By contrast, irregular wake-up times showed no clear link to cardiac events. In the study, major cardiovascular events were defined as conditions requiring specialised medical care, such as myocardial infarction or cerebral infarction.

“Previous research has linked irregular sleep patterns to heart health risks, but this is the first time we’ve looked separately at variability in bedtime, wake-up time and the midpoint of the sleep period—and their independent associations with major cardiac events,” says postdoctoral researcher Laura Nauha from the University of Oulu.

Sleep duration and timing were estimated using activity monitors that tracked participants’ time in bed.

“Our findings suggest that the regularity of bedtime, in particular, may be important for heart health. It reflects the rhythms of everyday life—and how much they fluctuate,” Nauha says.

https://link.springer.com/article/10.1186/s12872-026-05762-4

Ahhhh crap.

That’s not great, it’s like could have written this about my sleep habits.

It would be a pretty interesting to take events like weight, poor diet, suspected mental health issues and things like keeping devices in the bedroom, and factor around them… but I don’t really know how they would do that (or really how changing just one factor would improve that outcome)