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A Simple Guide to Sleep Disorders (A Simple Guide to Medical Conditions, #13)
By Kenneth Kee
eBook
$2.99
By Kenneth Kee
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Sleep is something which every one of us need.
It helps to rest the mind and allows the body to rest and rejuvenate itself.
Sleep is described as a state of consciousness or dynamic activity which gives the body time to rest and build up strength while the brains continue to work.
Sleep has four phases.
During the first stage N1, sleep is light and a person can be easily awakened.
At this stage, the muscle activity and eyes move very slowly.
Alpha waves of 8-13 Hz (awake stage) begin to change to...
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