Napping each week can lower risk for heart disease, stroke

Maricruz Casares
Setiembre 11, 2019

And so, to try and clarify the health impacts of napping by addressing certain discrepancies in previous studies (e.g. considering napping frequency), researchers compared napping frequency, average nap duration, and the risk of cardiovascular disease events (fatal and non-fatal) over a five-year period. The experts have recommended eight hours of sleep each night.

In a connected publication, Drs Yue Leng and Kristine Yaffe, of the University of California at San Francisco, USA, note that investigation into snoozing is risky due to there being no best quality level for characterizing and estimating rests, making it untimely to finish up on the fittingness of resting for keeping up ideal heart wellbeing.

Sure, it may very well be that those that have been in a position to nap additionally had decrease stress ranges or higher general well being, and extra analysis is unquestionably wanted, however the consultants behind this examine say the outcomes present some convincing proof to catch a fast snooze.

Analysing the results from 3,462 randomly selected residents aged 35-75 who live in Lausanne in western Switzerland, the researchers found that occasional napping, once to twice weekly, was associated with an nearly halving in attack/stroke/heart failure risk (48%) compared with those who didn't nap at all. This meant that only those participants were considered to be nappers if they reported at least one nap over the previous week.

Writing in the journal Heart, head researcher Dr Nadine Häusler said: "Subjects who nap once or twice per week have a lower risk of incident cardiovascular disease events, while no association was found for more frequent napping or napping duration". They categorized napping frequency as, "non-nappers, 1-2 naps, 3-5 naps and 6-7 naps during the previous week".

What are the beneficial effects of having a daytime snooze? Other studies have shown links between naps and improved cognitive functioning, a boost in mood, and better emotional control.

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About three in five said they don't nap. This association held true even after controlling for factors such as age, nighttime sleep duration, daytime sleepiness, depression, and regularity of sleep, as well as other cardiovascular disease risks, such as high blood pressure/cholesterol.

Could nap frequency help explain some of the disparity in these results?

And while there was originally a 67 percent increased risk of a cardiovascular disease event in the frequent napper contingent, this pretty much disappeared to nil when other factors (such as age, educational status, BMI, and various health conditions) were taken into consideration. "Do we count in a 5 min "dozing-off" as a nap?" wrote Yue Leng, an epidemiologist studying sleep behavior at the University of California San Francisco, in an editorial published alongside the new study.

New research recommends that sleeping a few times per week could be useful for the heart. Whereas daytime napping has been consistently linked to overall mortality, the effect of napping on cardiovascular disease (CVD) remains unclear.

And they conclude: "The study of napping is a challenging but also a promising field with potentially significant public health implications".

Next time you're feeling a bit sluggish, go ahead and hit the sheets for a power nap.

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