Sleep Flashcards
How often does sleep occur?
Approximately every 90 minutes
What is the Non-REM -REM cycle known as?
the Ultradian Sleep Cycle
How many cycles are there usually a night?
4-5
How can sleep be divided?
Stage 1 - Transitional Phase
Stage 2 - deeper level of sleep
Stage 3 - even deeper
Stage 4- deepest level of sleep
What is stage 4 otherwise known as?
The paradoxical sleep
What does REM mean?
Rapid Eye Movement
At what point does REM occur?
Stage 2
What is meant by the term Circadian Rhythms?
The psychological and behavioural functions in the body that have a regular cycle of approximately a day
What are the two types of fatigue?
Psychological
Subjective
What is psychological fatigue?
The reflection of the body’s need for replenishment and restoration
What is subjective fatigue?
The perception of how sleepy you feel
What are the disadvantages of rolling shift patterns?
Difficult for the body to adjust
Unsociable hours
