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- PowerPoint Presentation
Circadian sleep-wake cycle The top image shows the NREM REM sleep cycle in a normal individual The sleep cycle has an ultradian rhythm of approximately 90 minutes As the sleep episode progresses, this 90-minute cycle is repeated; however, the density of each sleep type is altered across the course of time in sleep
- Lab 1: Homeostasis, Data Collection and Data Analysis
Understand the differences and similarities between causation, correlation and fallacious reasoning Understand the concept of circadian rhythm Lab 1: Homeostasis, Data Collection and Data Analysis Pre-Lab 1 What is the term used to describe the body’s ability to maintain measurable variables within a healthy range?
- Fatigue Powerpoint presentation - National Safety Council
The circadian rhythm tells the body to become alert in the morning and drowsy at night and produces sleep-promoting chemicals like melatonin Even though their schedules may be different, shift workers still need the same amount of sleep
- The Lancet | The best science for better lives
Circadian rhythm sleep–wake disorders were thought to develop primarily as a result of disruption to the circadian system However, they are now also understood to develop from environmental and behavioural variables that dysregulate non-circadian sleep regulatory systems, including the homoeostatic sleep process, which affect a secondary shift in circadian timing Circadian rhythm sleep
- PowerPoint Presentation
An individuals menstrual cycle Levels of alertness Circadian rhythm – biological rhythm that occurs over approximately 24 hours Generated by the suprachiasmatic nucleus (SCN) The sleep-wake cycle, one of our main circadian rhythms is linked to our environments natural light-dark cycle What controls our biological rhythms?
- Slide 1
Circadian rhythm sleep disorder, Delayed Sleep Phase Type KEY POINTS Typical sleep onset time is between 1 AM and 6 AM, and wake time occur in the late morning to early afternoon The Horne-Ostberg questionnaire is a useful tool to assess the chronotype of ‘morningness’ or ‘eveningness’
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