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Old 12-29-2012, 07:44 AM   #6
luvforty
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Join Date: Dec 2012
Posts: 1,294
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along the spine there are a series of erector muscles that automatically work when the spine is out of line.

so for sleeping the key is to keep the spine as straight as possible... just play with the pillow material, thickness etc... also the mattress firmness.

the best mattress I have ever used is one of those in Marriott.... probably made from memory foam as well.
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