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• Almost a third of our lives sleeping happens.

• But scientists have only in the last four decades of rigorous study and understanding and transparency have happened in sleep time.

• According to the traditional view of modern sleep stage for recuperation and repair of tissues and cells is worn.

• But now we know that when you wake the body is unable to repair itself.

• In the past, people thought that sleep is a time of absolutely no activity for the body, the brain is active during sleep and can record the set of changes.