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Researchers Reveal Why People Should Take A Break Every 90 Minutes - The Platformconference.tv
The basic rest-activity cycle (BRAC) is a mechanism proposed by the “Father of sleep medicine,” Nathaniel Kleitman. More commonly referred to as the ultradian (alt-ray-dee-in) rhythm, Kleitman suggested that our sleep and wake cycles occur in 90-minute intervals. – The Journal of Sleep Research & Sleep Medicine Nathaniel Kleitman is considered the father of modern-day …