HolisticOnLine  Discover the Best!   

Comprehensive information about your health. Features conventional, alternative, integrative, and mind-body medicine.  
Holisticonline.com  gives you choices for your health,
naturally. (sm)  

Sleep Disorder Specialists Altoona PA

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

Everything Natural Under The Sun
(814) 943-6330
3415 Pleasant Valley Boulevard
Altoona, PA
 
Blair Chiropractic
(814) 943-3356
205 Tennyson Avenue
Altoona, PA
 
C V S/ Pharmacy
(814) 944-8535
Station Mall
Altoona, PA
 
Farabaugh Edward F District Of Columbia
(814) 944-2456
1409 8th Street
Altoona, PA
 
A Place To Rejuvenate
(814) 940-8110
116 Byron Avenue
Altoona, PA
 
Campbell Terence J District Of Columbia
(814) 943-0251
2513 Broad Avenue
Altoona, PA
 
Center for Natural Health
(814) 943-1672
2512 Broad Avenue
Altoona, PA
 
First Choice Chiropractic LLC
(814) 946-4000
523 East 25th Avenue
Altoona, PA
 
Body Mind Connection Therapeutic Massage
(814) 946-9697
704 Van Buren Avenue
Altoona, PA
 
Center for Holistic Living
(814) 944-6330
3415 Pleasant Valley Boulevard
Altoona, PA
 

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 ...

Click here to read the rest of this article from Holisticonline.com

Holisticonline.com is developed and maintained by ICBS, Inc.
Send mail to: info@holisticonline.com with comments about this web site.
Copyright © 1998-2011 ICBS, Inc. Terms of Use
All Rights Reserved.