Late Bedtime Linked to Higher Heart Attack Risk: Sleep Timing Really Matters

Late Bedtime and Heart Attack Risk

Recent research shows that going to bed after midnight on weekdays may increase the risk of a heart attack. A large study involving over 72,000 adults found that those with irregular sleep times, especially late bedtimes, had a significantly higher chance of cardiovascular events, including heart attacks and strokes. This risk persists even when total sleep duration meets recommended levels, highlighting the critical role of sleep timing in heart health.

Why Sleep Timing Matters

The body's cardiovascular system benefits from consistent sleep patterns, particularly during deep sleep stages when heart rate and blood pressure naturally decrease. Irregular or late sleep disrupts these restorative processes, potentially elevating blood pressure and inflammation, which can strain the heart. Maintaining a regular sleep schedule promotes better autonomic balance and reduces stress on the cardiovascular system.

Improving Heart Health Through Sleep Habits

Experts suggest prioritizing an earlier and consistent bedtime to lower heart attack risk. Avoiding late-night exposure to artificial light and establishing a calming pre-sleep routine can help regulate sleep timing. These simple changes may serve as effective, low-cost strategies to protect heart health and reduce the likelihood of serious cardiac events.