Healthcare (Commonwealth Union) – Sleep is crucial for maintaining good physical and mental health. During sleep, the body repairs itself, consolidates memories, and regulates hormones. Lack of sleep can lead to numerous health issues, including obesity, diabetes, cardiovascular disease, and weakened immune function. It also impairs cognitive abilities, such as attention, decision-making, and problem-solving. Chronic sleep deprivation has been linked to an increased risk of developing mental health disorders like depression and anxiety. To promote optimal health, adults should aim for better quality sleep each night. Establishing a consistent sleep schedule, creating a relaxing bedtime routine, and ensuring a comfortable sleep environment can all help improve sleep quality and duration.
Sleep deprivation caused by work or school schedules during the week can disrupt sleep patterns. However, recent research from ESC Congress 2024 suggests that individuals who compensate for lost sleep by sleeping in on weekends may reduce their risk of heart disease by 20 percent.
“Sufficient compensatory sleep is linked to a lower risk of heart disease,” explained the study co-author Mr Yanjun Song of the State Key Laboratory of Infectious Disease, Fuwai Hospital, National Centre for Cardiovascular Disease, Beijing, China. “The association becomes even more pronounced among individuals who regularly experience inadequate sleep on weekdays.”
Researchers of the study pointed out that it is widely recognized that individuals who are sleep-deprived tend to “sleep in” on their days off to counteract the effects of their lack of sleep. However, there is limited research on whether this compensatory sleep benefits heart health.
The researchers analyzed data from 90,903 participants in the UK Biobank study to explore the relationship between weekend catch-up sleep and heart disease. Sleep data, gathered using accelerometers, was divided into quartiles based on the amount of compensatory sleep (ranging from most to least). Q1 (n = 22,475) represented the least compensated group, with -16.05 to -0.26 hours (meaning some had even less sleep); Q2 (n = 22,901) ranged from -0.26 to +0.45 hours; Q3 (n = 22,692) from +0.45 to +1.28 hours; and Q4 (n = 22,695) had the most compensatory sleep, ranging from +1.28 to +16.06 hours.
The self-reporting of sleep deprivation was included in the study with those reporting under 7 hours of sleep per night being classified as sleep-deprived. A total of 19,816 participants (21.8 percent) fell into this category. The remainder of the participants might have occasionally slept poorly, but on average, their sleep duration did not meet the criteria for sleep deprivation—a limitation the authors acknowledge in their data.
The hospitalization records and cause of death registries were utilized to identify various cardiac conditions, that consisted of ischemic heart disease (IHD), heart failure (HF), atrial fibrillation (AF), and stroke.
Having a median follow-up period of nearly 14 years, participants in the group with the highest amount of compensatory sleep (quartile 4) had a 19 percent lower likelihood of developing heart disease compared to those in the group with the least compensatory sleep (quartile 1). Among those experiencing daily sleep deprivation, individuals with the most compensatory sleep had a 20 percent reduced risk of developing heart disease compared to those with the least. The analysis revealed no significant differences between both males and females.
The co-author Mr Zechen Liu, also of State Key Laboratory of Infectious Disease, Fuwai Hospital, National Centre for Cardiovascular Disease, Beijing, China, said “Our results show that for the significant proportion of the population in modern society that suffers from sleep deprivation, those who have the most ‘catch-up’ sleep at weekends have significantly lower rates of heart disease than those with the least.”
As the study indicates sleeping in on weekends may lower your heart disease risk it will be essential particularly for students and those engaged in multiple jobs to give priority for sleep. As sleep and heart health are an essential part of our lives the need to get quality sleep becomes more significant to take into consideration as often many conditions can such as keeping lights and mobile phones can interfere with the quality of sleep. The study has contributed to the link between heart disease and compensated sleeping for sleep researchers by providing key findings for researchers.
