By Jakub Kudlacek

As mentioned in the post (RSI: wrist – ergonomic mouse), our extremities, especially arms, can suffer from a very underestimated issue called Repetitive Strain Injury (RSI). We even don’t think about it, but our arms (especially the mouse arm) is constantly a little bit in front of our body. This “a little bit shift forward” can cause a lot of problems when repeating over and over again for a long time.
Shoulder muscles are over-strained, stiff and painful. The only way to solve this problem is to straight up your body (at least once a while) and push the mouse shoulder backward (at least for a while). Use Movegeen Hygiene techniques (Upper Body) to win this fight.

(http://writingandwellness.com/2018/01/29/how-to-stop-your-computer-from-hurting-your-shoulders/)