by NASA's Marshall Space Flight Center
Did you know that your upper back is the most complex area of your spine?
Most of us think that upper back pain is caused by injuries or trauma, but just by sitting for a long time on your chair or leaning over your desk for a few hours a day can put a lot of strain and cause chronic upper back pain. This gets even worse when the ribs that are attached to the spine in the upper back get involved - then you start experiencing pain that
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