Weekend Sleep Irregularity Ups Heart Risk Over 20%

Late nights on weekends and inconsistent sleep schedules are associated with a substantial increase in the risk of heart attacks, strokes, and heart failure, according to a large US study. Researchers analyzed over a million nights of sleep data, finding that changes in sleep timing from night to night were linked to a 20%-23% higher risk of serious cardiovascular events. Every half-hour increase in sleep length variation per night correlated with a 29% higher risk of heart muscle disease and a 20% increased risk of heart failure.

Sleep irregularity is often attributed to weekend habits or shift work, highlighting potential risks to heart health. While sleep quality can be difficult to control, maintaining consistent bedtimes and wake times throughout the week is an actionable step for individuals to protect their cardiovascular system. This research emphasizes the importance of regular sleep schedules over merely achieving a full night's sleep, suggesting it's a key factor in maintaining heart and blood vessel health.