A nap, preferably short, is good for the heart

A nap, preferably short, is good for the heart

To say it is a recent Chinese study presented at the Congress of the European Society of Cardiology

Not more than an hour. For those accustomed to a few minutes of rest after the midday meal, the nap is golden. But it doesn't have to be too long. At least when it comes to heart health. When it goes beyond the hour, it becomes a double-edged sword and may not even be of benefit to the heart. To say it is a Chinese study, presented at the Congress of the European Society of Cardiology (ESC).

It is important to sleep at night

The research, in practice, went to re-read the data relating to over 310,000 people, collected in about twenty studies. Two key elements have been drawn from this large amount of information: first of all, what matters is getting the right amount of sleep at night, so as not to transform the nap into a sort of recovery of the missing hours of sleep.

In short, the important thing is to rest at night for the right amount of hours and therefore not need to rest to "compensate". In this sense, the length of the nap and its impact on heart and arterial health should also be read.

Those who on average exceeded the hour of sleep in the afternoon, generally, had to do with a 34% increase in the risk of death from cardiovascular disease. Please note that this type of problem mainly affects the elderly, who have altered sleep rhythms, and women.

A hypothesis that can explain the potential risks of prolonged afternoon rest is linked to the danger of inflammation, which obviously affects the whole organism and therefore also on the arteries and heart: when you rest too long during the day, in fact, you can give the "the" to processes that certainly do not help well-being. In any case, for those who fall adequately into Morpheus' arms at night, a short nap after a meal seems to be protective.

In this sense, regardless of the Chinese study, the praise of the nap is now already amply demonstrated by science, always for those who rest the right time at night. First, the nap fights stress. Research shows that half an hour of rest would ease the tension in university students and how, after a night of sleep deprivation, the nap reduces the values ​​of cortisol, the stress hormone. It also protects the heart.

According to research, those who take frequent naps would have a lower risk of getting sick from coronary artery diseases, probably due to the effects on the heart and blood pressure with an impact on health. Finally it improves memory. For those who have to study, the nap helps to store what they have tried to learn and promotes greater vigilance, with obvious advantages related to preparation in the case of university exams.

An aid to memory

According to research from the Center for the Study of the Brain and Behavior of the University of Haifa, published in Nature Neuroscience, the nap that leads us to deep sleep could have positive effects to refresh and help the long-term memory, the one that is " deposits ”and allows us not to forget people's names, but also, for example, how to drive.

Memories seem to fix better when you rest. In particular, it has been seen that during slow-wave sleep, the so-called non-REM sleep, neurons stimulated in wakefulness during a learning process seem to reactivate and strengthen their connections, favoring memorization processes.

Thanks to rest, in a completely autonomous way, the brain tends to eliminate the unnecessary connections that are created between the nerve cells. But night is the ideal time to clean up. In this sense, a nap can only help to eliminate "waste", but not if you suffer from sleeplessness at night. Otherwise, taking a nap is just a habit that doesn't hurt, but it shouldn't become a replacement for sleepless nights.

Category: Health
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