Sleep regularity and major adverse cardiovascular events: a device-based prospective study in 72 269 UK adults

https://jech.bmj.com/content/early/2024/10/30/jech-2024-222795?utm_campaign=morning_rounds&utm_medium=email&_hsenc=p2ANqtz-8p7ASuvTO2uIksORF5DzMiJctKO_Ol8tFHYmWde2YymUrhdkcCkO_411oyEzavw6NBWega57fd5pryR8mEjZVfUk_woA&_hsmi=335871632&utm_content=335871632&utm_source=hs_email Study says: Irregular sleep linked to risk of heart failure, stroke Irregular sleep patterns are linked with a significantly higher risk of major cardiovascular health events like heart failure, stroke, and myocardial infarction, according to a study published yesterday in the Journal of Epidemiology and Community Health. People with moderately irregular sleep schedules can see their risk offset if they still meet the recommended number of hours for sleep for their age group, the study found. But that wasn’t true for the most irregular sleepers. Researchers analyzed eight years of data from more than 72,000 people ages 40 to 79 who, as part of the UK Biobank project, wore tracking devices on their wrist for one week. None of the participants had a history of severe heart problems. Regular vs. irregular patterns were assessed using something called the Sleep Regularity Index — a calculation of the probability that someone is awake or asleep at any two times 24 hours apart. Another study from January also found that sleep regularity was a stronger prediction of mortality risk than sleep duration. Authors of both studies argue that sleep regularity might be even more important to one’s health than sleep duration. Validation of the Sleep Regularity Index in Older Adults and Associations with Cardiometabolic Risk https://www.nature.com/articles/s41598-018-32402-5?utm_campaign=morning_rounds&utm_medium=email&_hsenc=p2ANqtz--Qb-FzbrHEkD7UHTwNXcsfGyILTV-XQ9U3fpH-F3Jc0xXQ-ZtTClbpKGR6SrcDHnrCxzjhVPQ4CwJiXh82MAe-wvu1_w&_hsmi=335871632&utm_content=335871632&utm_source=hs_email Sleep regularity is a stronger predictor of mortality risk than sleep duration: A prospective cohort study https://academic.oup.com/sleep/article/47/1/zsad253/7280269?utm_campaign=morning_rounds&utm_medium=email&_hsenc=p2ANqtz-99X2KkyM9iPyGu7LcSOVA3LAt6rfc5StWU7uYPOtp3-Ef9iOBSVQdqoa4-tQLeLzZTZ4J3kOJyz2JD3bC8thKVMe4r0A&_hsmi=335871632&utm_content=335871632&utm_source=hs_email