Scientists from medical centers in Turkey, Brazil and America have found that some people do not need many hours of sleep to fully recover spent during the day forces. The data were confirmed in a study with the participation of the people, who needed less than six hours of sleep per day.
Scientists have discovered that some feel rested even after five hours of sleep. The secret, as was laid down in the specifics of the genetic apparatus. Mutations in the gene BHLHE4 change the ratio of the required hours of sleep to wakefulness. As a result, people poured over a shorter period of time.
Doctors believe that 7-8 hours is the minimum necessary for full recovery of strength and functioning of all organs and systems in the normal mode. Do not look for the features, it is better to stick to a sound mode and go to bed early.