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Long daytime naps might raise your odds for A-fib

Long daytime naps might raise your odds for A-fib

Daytime naps longer than a half-hour appear to nearly double a person's risk of developing an irregular heartbeat, a new study reports.

People who nap 30 minutes or more a day have a 90% higher risk of developing the heart rhythm disorder atrial fibrillation (a-fib) than those who take shorter naps, according to research presented Thursday at a meeting of the European Society of Cardiology, in Malaga, Spain.

"Our study indicates that snoozes during the day should be limited to less than 30 minutes," study author Dr. Jesus Diaz-Gutierrez of Juan Ramon Jimenez University Hospital in Huelva, Spain, said in a society news release. "People with disturbed night-time sleep should avoid relying on napping to make up the shortfall."

Research presented at meetings should be considered preliminary until published in a peer-reviewed journal.

A-fib causes the heart's upper chambers to beat irregularly, increasing a person's risk of stroke fivefold, the researchers said in background notes. It's the world's most common .

For this study, the investigators tracked more than 20,000 Spanish university graduates. Participants were divided into three groups: those who don't nap; those who nap less than 30 minutes; and those who nap 30 minutes or more each day.

During an average follow-up of nearly 14 years, 131 participants developed a-fib.

Those taking longer naps had nearly twice the risk of compared to those taking short naps, according to the first analysis. Meanwhile, folks who didn't nap did not have any elevated a-fib risk compared to short-nappers.

Looking more closely at short-nappers, the researchers found that those who napped for fewer than 15 minutes had a 42% lower risk of developing a-fib, while those who napped 15 to 30 minutes had a 56% reduced risk compared with long nappers.

"The results suggest that the optimal napping duration is 15 to 30 minutes," Diaz-Gutierrez said. "Larger studies are needed to determine whether a short nap is preferable to not napping at all."

He said there are many potential explanations for the link between napping and health.

"For example, long may disrupt the body's internal clock (circadian rhythm), leading to shorter night-time sleep, more nocturnal awakening and reduced ," he said. "In contrast, short daytime napping may improve circadian rhythm, lower blood pressure levels and reduce stress."

While the study found an association between naps and a-fib risk, it could not prove cause and effect.

More information: Harvard Medical School has more about the health effects of napping.

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Citation: Long daytime naps might raise your odds for A-fib (2023, April 13) retrieved 22 June 2024 from https://medicalxpress.com/news/2023-04-daytime-naps-odds-a-fib.html
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