Now that our warm summer weather has gone, it is easy to forget about good posture and huddle our shoulders round to try and keep warm.
If you habitually do this, the muscles at the front of your chest will shorten and pull your shoulder girdle forwards, creating pain round the back of the shoulder as those muscles get overstretched through being pulled forwards. We then also push out our chins to avoid falling over with this new shift in the centre of gravity of our shoulder girdle, which bends our necks and creates neck pain.
This can all be avoided by wrapping up warmly so that you are able to walk with an easy open posture. For those people who have already managed to tighten their chest muscles and have this shoulder pain as a result, then a few deep tissue massages should be able to alleviate the problem.