Hi
''I may be due to the way you repetitively rest the elbow or forearm on a table e.g. the edge of the desk when working at a computer''
Oh yeah that could be something to blame for sure. Its not me but i basicly sit excatly like that, similar chair

What should i do with that fact? Get rid of the arm rest from my chair or?

I cant think of another reason, Durnin Corona time i didnt workout for few months so i doubt its exercises

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