We know that our sleep-wake patterns are regulated by our circadian rhythm — our internal clock. And now doctors are learning more about a set of genes responsible for making this clock tick. They also are discovering the circadian rhythms for vital organs — working in unison to create a living, breathing, walking clock. This system of "circadian genes" is responsible for regulating the sleep-wake cycle of other genes as we are proving that one's body is comprised of a series of circadian rhythms. This scientific research could lead to new ways of treating those of us who are night owls or daytime larks.
All 50 Secrets of the Sequence videos have an accompanying classroom-tested lesson that encourages students to further explore the video topics. Each lesson includes background information, state and national science standards, discussion questions and answers, teacher notes and an activity that will ensure a hands-on, "minds-on" experience. To see lessons for this series, visit http://www.pubinfo.vcu.edu/secretsofthesequence/.