Removing the arms

I removed the arms from my chair last night. It's an office chair I salvaged from friends who were moving to Brazil. I've got an old wooden desk, with drawers down one side. The arms of the chair stopped me from being able to pull the chair right in. It's been like this for over a year, and causes me to crouch over whilst studying. Last night I had an epiphany, and removed the arms. Now I can sit upright, and it seems to help my concentration (at least, that's what I'm telling myself).