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The time that the members of a couple spend sleeping sometimes varies markedly, as does the time they fall asleep and wake up.

It is one of the myths about this widespread parasomnia, although it is not always true. This is what the specialist Antonio Zadra has found in this regard.

Although the sense of smell may seem intuitive, almost automatic, it is one of the first things that go wrong in neurodegenerative disorders (Alzheimer's, Parkinson's, etc.) and now a team of researchers from NYU Langone Medical Center has discovered that memory It is on the specific odors that the brain's ability to learn, process and remember accurately during the deep sleep phase depends.

This sleep disorder has a very late diagnosis, about 6 or even 10 years after symptoms began to appear.

Obstructive sleep apnea is a disorder in which a sufferer pauses breathing when asleep or has shallow breathing. These pauses can occur more than 30 times an hour, due to the airways narrowing or blocking during sleep. The problem is that those affected have a poor quality sleep and suffer a marked feeling of daytime fatigue.

Employees who work in offices with windows sleep more and better at night, are more physically active and have a higher quality of life than those who work in offices without windows, according to a study released at the latest annual meeting of the Association of Professional Sleep Societies.

According to a recent study by Kimberly Fisher, from the University of Oxford (United Kingdom), and published in the journal Social Indicators Research, in most countries the average time spent sleeping ranges between 8 and 8.5 hours a day, adding a total of 56 to 60 hours of sleep a week. The sleepiest are the Bulgarians and the French, who sleep about 9 hours a day.

On the eve of an exam it is common to hear that it is better to go to sleep than to spend the night awake studying, since sleep serves to consolidate what has been learned. Memory enhancement at night had already been scientifically proven, but new research from Brown University (USA) has revealed that this brain activity occurs during the slow wave sleep phase and not during REM phase.