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Sleep Disorder Specialists Bristol VA

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

Cinthia A. McFeature
(276) 591-5635
Bristol, VA
Membership Organizations
American Holistic Health Association (AHHA)

Data Provided By:
C V S/ Pharmacy
(540) 645-5344
1465 Lee Hwy
Bristol, VA
 
Appalachian Chiropractic Wellness Center
(276) 669-0969
111 Commonwealth Avenue
Bristol, VA
 
Apamarket
(276) 669-4181
Post Office Box 1807
Bristol, VA
 
C V S/ Pharmacy
(423) 274-6163
3030 W State St
Bristol, TN
 
Gloria Striker
(276) 628-4233
107 Charwood Dr.
Abindgon, VA
Membership Organizations
International Association for Colon Hydrotherapy (IACT)

Data Provided By:
Allen Chiropractic Care Inc
(276) 466-2273
1932 Lee Highway
Bristol, VA
 
First Impression Hair & Nail Salon & Spa
(276) 669-7040
151 Gate City Highway
Bristol, VA
 
Boston-Hill Candle Company
(276) 669-0240
2671 Lee Highway
Bristol, VA
 
Bristol Health Food Store
(423) 968-1241
1600 Edgemont Avenue
Bristol, TN
 
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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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