Well that's because the real problem is somewhere else. Let me explain.
A feeling of tightness in those muscles (called the upper trapezius and levator scapulae) happens mostly because they are hypertonic. That means that those muscle fibres are over-active or tense from over-working. The reason they are having to do so much can vary but they often boil down to 2 main reasons.
Mobile phones, TV, computers, laptops all make this posture more and more common in our daily lives.
The second reason is weakness in other areas. In particular the ones that stabilise the shoulder blade and keep the upper back straight. Why these get weak in the first place usually ties in closely with your posture but other reasons can also contribute like previous injury, abnormal spinal curvatures, repetitive activity or sport and even respiratory problems.
the good news is that these are correctablte and by treating the right area you can get to the underlying cause and get long lasting improvement in that upper shoulder pain rather than having to constantly be bugging someone for a massage!
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