Love daytime snoozing? It is best to check on the duration as napping too long throughout the day may awaken some health issues. Researchers say individuals who sleep for long hours throughout the day are at higher risk of developing irregular heartbeats.

Greater than half-hour of sleep throughout the daytime can result in a heart rhythm condition called atrial fibrillation (a-fib), shows a latest study, which is yet to be published in a peer-reviewed journal.

“Our study indicates that snoozes throughout the day must be limited to lower than half-hour,” study writer Jesus Diaz-Gutierrez, of Juan Ramon Jimenez University Hospital in Huelva, Spain, said in a news release from the European Society of Cardiology.

Atrial fibrillation is a cardiac disorder that causes irregular and sometimes very rapid heart rhythm. This may result in blood clots in the guts, thereby increasing the danger of stroke and other cardiac ailments, in line with Mayo Clinic. The condition predominantly occurs in the guts’s upper chamber, Health Day reported.

Over 20,000 Spanish university graduates participated within the study. They were grouped under three categories: those who don’t nap, those that nap lower than half-hour and those that nap half-hour or more every day. In the course of the follow-up period of 14 years, 131 participants developed a-fib.

Researchers found those that took longer naps were twice at the danger of developing the disorder in comparison with those that slept less throughout the day. Those that didn’t nap in any respect were within the no-risk zone.

The study indicated that folks who napped for fewer than quarter-hour had a 42% lesser probability of developing a-fib, and people whose sleep routine was limited between 15 to half-hour had a 56% reduced risk of a-fib as in comparison with long nappers.

“The outcomes suggest that the optimal napping duration is 15 to half-hour,” Diaz-Gutierrez said. “Larger studies are needed to find out whether a brief nap is preferable to not napping in any respect.”

“Long daytime naps may disrupt the body’s internal clock (circadian rhythm), resulting in shorter night-time sleep, more nocturnal awakening, and reduced physical activity,” the researcher explained said. “In contrast, short daytime napping may improve circadian rhythm, lower blood pressure levels, and reduce stress.”

The study has just established a link between long naps and a-fib, it doesn’t explain its cause and effects.

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