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Some interesting facts about sleep are as follows:
- Trivia Fact 1: The average ãdül† needs a total sleep time of 7 to 9 hours per day - it is not true that older people need less sleep however over 50% of people over 64 years old suffer from some type of sleep disorder
- Trivia Fact 2: Some sleeping tablets, such as barbiturates suppress REM sleep, which can be harmful over a long period
- Trivia Fact 3: People can take cat naps with their eyes open without even being aware of it.
- Trivia Fact 4: REM stands for "rapid eye movement" because our eyes can be seen to move under our eyelids
- Trivia Fact 5: During REM sleep we are almost totally paralysed. Only the diaphragm and muscles of the intestines, heart, blood and eyes are not affected by this paralysis
- Trivia Fact 6: REM is a very deep kind of sleep and we are usually difficult to wake
- Trivia Fact 7: A Catnap is a a short sleep (usually not in bed)
- Trivia Fact 8: Dreaming that you are taking a nap, suggests that you need to take a little time off to relax and take it easy.
- Trivia Fact 9: Paradoxical sleep is a recurring sleep state during which dreaming occurs; a state of Rapid Eye Movements during sleep - rapid eye movement sleep, REM or REM sleep
- Trivia Fact 10: Orthodox or Nonrapid eye movement sleep, NREM, NREM sleep are all terms for Orthodox sleep which is a recurring sleep state during which rapid eye movements do not occur and dreaming does not occur; accounts for about 75% of normal sleep time.