{"id":7564,"date":"2026-04-07T15:14:07","date_gmt":"2026-04-07T15:14:07","guid":{"rendered":"https:\/\/www.healthoptibody.com\/?p=7564"},"modified":"2026-04-07T15:14:07","modified_gmt":"2026-04-07T15:14:07","slug":"irregular-bedtimes-and-sleeping-less-than-8-hours-may-double-your-risk-of-heart-attack-study-finds","status":"publish","type":"post","link":"https:\/\/www.healthoptibody.com\/?p=7564","title":{"rendered":"Irregular bedtimes and sleeping less than 8 hours may double your risk of heart attack, study finds"},"content":{"rendered":"

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By MARTI STELLING, HEALTH REPORTER<\/a> <\/p>\n

Published:<\/span>

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People who go to bed at inconsistent times and sleep less than eight hours a night may be twice as likely to suffer major heart problems, according to a new study.\u00a0<\/p>\n

Researchers at the University of Oulu in Finland<\/a> followed 3,231 adults for ten years to study how sleep patterns affect heart health.<\/p>\n

Participants wore wearable devices that recorded when they went to bed, woke up, and the midpoint of sleep, which is the halfway point between falling asleep and waking.<\/p>\n

To identify who had irregular sleep schedules, the researchers measured how much these times varied each day over seven consecutive days.<\/p>\n

During the ten-year follow-up, 128 participants – about four per cent – experienced major heart events, including heart attack, stroke, unstable angina, hospitalisation for heart failure, and even death from cardiovascular disease.<\/p>\n

People with highly variable bedtimes or sleep midpoints were at significantly higher risk – but only if they slept less than the median of seven hours and 56 minutes per night.<\/p>\n

Those who slept longer than this did not show the same increased risk.<\/p>\n

Researchers said irregular bedtimes can disrupt the body\u2019s internal clock, which controls heart function, hormones, metabolism and the body\u2019s ability to recover during sleep.<\/p>\n

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Going to bed at different times and sleeping less than eight hours could double heart attack risk<\/p>\n<\/div>\n