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Welcome! 1 1/2 to 2 hour course. Pamphlets available in main hallway by elevator on the topics covered today.
You’re going to hear the term circadian rhythms quite a bit today. I’ll be explaining how they work and how they affect your life. Understanding how these circadian rhythms affect your life as a shiftworker is an important first step toward developing some strategies to cope with shift work fatigue.
(Show picture of brain) Scientist know that this cluster of nerve cells is a biological clock because when it is destroyed in animal experiments by surgical pinpoint lesions of the brain, the circadian rhythms fade away. (SCN - Suprachiasmatic Nucleus) The animals still run, eat and drink but these activities become very randomly distributed through the day and night. Their normal habits are gone. Your body is designed to sleep at night. All your bodily functions have circadian rhythms and are controlled by this biological clock. It can be influenced by sunlight and darkness.