I Just Want To Sleep! Understanding Circadian Rhythm By: Sumayia Hussain Sabantu Yusuf Selam Kidane.

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Presentation transcript:

I Just Want To Sleep! Understanding Circadian Rhythm By: Sumayia Hussain Sabantu Yusuf Selam Kidane

What Is It? “Body Clock” Behavioral oscillation (back and forth variation/pattern) of 24 hours –Periods of activity and inactivity –Example: feeling alert at certain times and drowsy at other times Controlled by neurons in the brain –Region: superchiasmatic nucleus Affected strongly by sunlight –Natural cue for daily sleep-wake schedule Occurs in all living things

Picture Time!

Purpose To develop biological rhythms in response to environmental patterns of Earth Better organize behavior and activities Part of our health and that of other living things is dependent on maintaining proper cycles –Humans: Sleep-Wake cycle –Plants: Flowering and photosynthesis –Insects: Locomotion and feeding

Disorders Jet lag –Problems in cycles of sleep due to conflict between time zones –Occurs during travel –Going east results in more severe jet lag than going west Easier to delay sleep than advance sleep Shift Work Disorder –Frequently rotate or work at night Delayed Sleep Phase Disorder –“night owl”

Any Questions? Thank You!