Muscle shortening: When you sleep on one side or the other, you bend your spine to a contour that it may not be used to. This leads to muscles on each side lengthening or shortening, leading to either shorter, tighter muscles on one side or possibly fatigued muscles more likely to spasm on the other side. This occurs from major stabilizers of your spine down to the very smallest muscles connecting your vertebrae.
Answered 9/4/2013
4.9k views
Sleep: Must be related to posture and type of mattress no clear reason comes to mind.
Answered 9/4/2013
4.9k views
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
6 doctors weighed in across 3 answers
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