When the time woke up on Monday but was not fit and lack of concentration, maybe you do not get enough sleep on the weekends. Extra sleep on the weekend served to increase the performance of the brain during the next week.
The result of the latest edition of the study in the journal Sleep concluded, those who sleep more on weekends have a better performance than those who sleep less on weekends. Extra sleep time on weekends is needed to fill the brain and increase energy, sharpen alertness and attention after a week of sleep restricted.
The scientists also warn, staying up all night on weekends will interfere with the brain's performance significantly in the next week.
Dr. David Dinges, Chief of Division of Sleep and Chronobiologi at the University of Pennsylvania, said, "Two hours of extra sleep time during the final week of beneficial increase concentration and alertness," he said, as published in the Telegraph.
"In essence, the recovery of sufficient importance to overcome the effects of limited sleep for a week in the brain."
In a different study, the scientists found, the most effective time to sleep for seven hours. A study of 30 thousand adults found cardiovascular disease including heart attacks, strokes and angina two times higher in people with sleep less than five hours.
However, you need to know also, daily sleep time more than nine hours increases the risk of chronic disease. Thus, the ideal sleep time between 7-9 hours per day.
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