A new study presented at the European Society of Cardiology (ESC) Congress 2024 suggests that catching up on sleep during weekends could significantly reduce the risk of heart disease. Researchers from China analyzed sleep data from 90,903 individuals over a 14-year period and found that those who compensated for weekday sleep deficits by sleeping more on weekends had a 20% lower risk of heart disease. The study, conducted by researchers at the State Key Laboratory of Infectious Disease at Fuwai Hospital in Beijing, looked at participants who reported getting less than seven hours of sleep per night during the week.
The findings indicated that individuals who managed to catch up on sleep over the weekends were less likely to suffer from heart-related conditions such as ischemic heart disease, heart failure, atrial fibrillation, and stroke. Dr. Yanjun Song, one of the study’s co-authors, emphasized that adequate compensatory sleep is strongly linked to a decreased risk of heart disease. The protective effect was particularly noticeable among those who regularly experienced insufficient sleep during weekdays, highlighting the potential benefits of weekend sleep recovery.
The study’s findings were based on an analysis of hospitalization records and death registry information, which revealed a clear association between weekend sleep catch-up and reduced heart disease risk. Dr. Zechen Liu, another co-author, noted that the results are particularly relevant for people in modern society, where sleep deprivation is increasingly common. Dr. Marc Siegel, a clinical professor of medicine at NYU Langone Medical Center, described the study as “revealing,” despite its limitations as a non-randomized trial. He pointed out that making up for lost sleep on weekends allows the body to recover, reducing stress hormone levels and benefiting heart health.
However, Dr. Wendy Troxel, a senior behavioral scientist at RAND Corporation, advised caution in interpreting the results. She warned that while weekend sleep catch-up may offer some benefits, irregular sleep schedules can also have negative health consequences. Troxel recommended maintaining a consistent sleep-wake schedule throughout the week to avoid potential risks. The researchers acknowledged that a significant portion of the study’s participants did not meet the criteria for severe sleep deprivation, which limits the generalizability of the findings. Nonetheless, the study adds to the growing body of evidence that prioritizing sleep is crucial for heart health.