People who catch up on lost sleep at weekends may lower their risk of heart disease by up to 20%, research suggests.
Data from more than 90,000 people in the UK suggests compensating for lack of sleep during the week with extra snooze time at the weekend can mitigate the negative effects of sleep deprivation.
Findings presented at the European Society of Cardiology Congress 2024 showed that in sleep-deprived people with the most catch-up sleep at weekends the risk of heart disease fell by a fifth compared with those who had no extra shut-eye or slept even less at weekends.
One of the study’s authors, Yanjun Song, of China’s National Centre for Cardiovascular Diseases at Fuwai hospital, in Beijing, said: “Sufficient compensatory sleep is linked to a lower risk of heart disease. The association becomes even more pronounced among individuals who regularly experience inadequate sleep on weekdays.”
The researchers looked at self-reported data from 90,903 people who are part of the UK Biobank project, which holds medical and lifestyle records on half a million individuals. Of these, 19,816 met the criteria for being sleep deprived.
Hospital records and cause of death registry information were used to identify those who had heart diseases, heart failure, irregular heart rhythm and stroke.
Over a follow-up period of 14 years, the team found that people with the most extra sleep (ranging from 1.28 to 16.06 hours of additional sleep during weekends), were 19% less likely to develop heart disease than those with the least amount of compensatory sleep (ranging from losing 0.26 to 16.05 hours over the weekend).
In a sub-group of people with daily sleep deprivation, those with the most compensatory sleep had a 20% lower risk of developing heart disease than those with the least, the researchers said.
Zechen Liu, a co-author, also of the National Centre for Cardiovascular Disease, 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.”
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Prof James Leiper, an associate medical director at the British Heart Foundation, who was not involved in the study, said: “Lots of us don’t get enough sleep due to work or family commitments, and while a weekend lie-in is no replacement for a regular good night’s rest, this large study suggests that it might help reduce risk of heart disease.
“We know that lack of sleep can affect our overall wellbeing, and this research is an important reminder of how important it is to try to get at least seven hours’ sleep every night. We look forward to future studies to better understand how sleep patterns can impact the heart and how we can adapt modern lifestyles to help improve our health.”
