Most people have had a time when they have slept little. The next day, we have the feeling that at the cognitive level we are slower. A study that analyzed the sleep of more than 10,000 people determined that those who slept less or more than 7-8 hours, their cognitive performance was affected. Sleeping 4 hours per night was equivalent to 8 years of aging!

These results show the importance of sleep for optimal performance.

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