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Sleep Disorder Specialists Portland OR

Looking for Sleep Disorder Specialists in Portland? We have compiled a list of businesses and services around Portland that should help you with your search. We hope this page helps you find Sleep Disorder Specialists in Portland.

Kay Slick
(503) 234-5675
4118 SE Harrison
Portland, OR
Membership Organizations
International Association for Colon Hydrotherapy (IACT)

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Rebecca Harder
(503) 222-3311
1750 SW Harbor Way+ #230
Portland, OR
Membership Organizations
International Association for Colon Hydrotherapy (IACT)

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Paddy Lazar
(503) 230-0812
316 NE 28th Ave
Portland, OR
Membership Organizations
International Association for Colon Hydrotherapy (IACT)

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Linda Hallmark
(503) 236-8766
625 SE 54th Ave.
Portland, OR
Membership Organizations
International Association for Colon Hydrotherapy (IACT)

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Melissa Hoffman
2953 Northwest Savier Street
Portland, OR
Membership Organizations
American Holistic Medical Association (AHMA)

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Jennifer Kuenz
(503) 552-1551
3025 SW Corbett Ave.
Portland, OR
Membership Organizations
International Association for Colon Hydrotherapy (IACT)

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Katherine Hall
(865) 789-9401
3181 Southwest Sam Jackson Park Road
Portland, OR
Membership Organizations
American Holistic Medical Association (AHMA)

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Jill Simons
(503) 230-0812
316 NE 28th Ave.
Portland, OR
Membership Organizations
International Association for Colon Hydrotherapy (IACT)

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Dawn Ley
(608) 251-6100
2223 Southeast Sherrett Street
Portland, OR
Membership Organizations
American Holistic Medical Association (AHMA)

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Sonia Sosa
(773) 477-7997
6215 Northeast 17th Street
Portland, OR
Membership Organizations
American Holistic Medical Association (AHMA)

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The Different Stages of Sleep

 Sleep 

In 1952, sleep-researcher Nathaniel Kleitman discovered that although sleepers tended to have slow, rolling eye movements beneath their lids as they fell asleep, during some portions of their sleep their eyes darted rapidly in a highly coordinated way, moving more quickly and sharply than they could while they were awake. He dubbed the phenomenon rapid eye movement (REM), a phase of sleep that was later related to dreaming.

Later researchers using electroencephalogram (EEG) that measures the electrical activity in the brain discovered that the REM stage of sleep is different from non-REM (NREM) sleep.

Sleep occurs in a series of cycles, each lasting between sixty and ninety minutes. A normal sleep pattern involves four to seven such cycles during the course of the night. On average, people have five or six sleep cycles during a normal nighttime sleep session.

Each cycle has two main parts. 

During the first part, our level of consciousness falls while the level of unconsciousness rises. This part of the cycle involves changes in heart rate and breathing, and an overall slowing of brain activity. We do not dream during this phase. 

In the second part of the cycle, however, we do dream. The characteristic sign of this phase of sleep is rapid eye movement, or REM.

Generally, each ninety-minute sleep cycle contains a non- REM period (or slow-wave sleep) and the REM period. On average, each of these two main periods occupies about 50 percent of the cycle's elapsed time, or about forty-five minutes. However, the balance between the two periods shifts during the course of the night. During the first ninety-minute cycle, the REM phase might last only a few minutes. In the final cycle of the night, REM sleep occupies most of the time, perhaps an hour or more.

Non-REM sleep actually consists of four distinct substages, labeled 1 through 4. The stages are defined according to the ...

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