This common sleep habit could double your risk of heart attack

A chaotic sleep schedule in your 40s might be quietly setting the stage for heart trouble later. Researchers tracking thousands of people for over a decade found that those with highly inconsistent bedtimes-especially when they slept less than eight hours-faced about double the risk of serious cardiovascular events like heart attacks or strokes. Interestingly, it wasnt when people woke up that mattered most, but how erratic their bedtime was.