This Simple Habit Change Could Decrease Heart Disease Risk by 50%, Scientists Say

Key Points:

• A study published in BMC Cardiovascular Disorders found that irregular bedtimes in middle-aged adults doubled the risk of heart disease, including heart attack, stroke, heart failure, and cardiovascular-related death over a 10-year period.
• The research, involving 3,231 Finnish adults monitored for sleep patterns, showed that irregular bedtimes—varying by nearly two hours—were a stronger predictor of heart risk than irregular wake-up times, especially in those sleeping less than eight hours.
• Experts explain that consistent bedtimes support the body's master clock, which regulates vital heart repair processes during sleep; irregular sleep times can cause "heart jet lag" and increase inflammation, contributing to cardiovascular risk.
• The American Heart Association now includes sleep regularity as a key factor for heart health alongside diet, exercise, and not smoking, emphasizing the importance of maintaining a consistent bedtime routine.
• Doctors recommend establishing a wind-down routine before sleep, aiming for 7-8 hours of sleep with a consistent bedtime between 10 p.m. and midnight, and consulting healthcare providers if sleep difficulties persist to reduce heart disease risk.