Ergonomics!

Ergonomics are the study of how people uses their work space and equiptment.  A bad habit of mine is I slump when I sit and stand. My posture is all around terrible! I don't believe this environment is ergonomically sound because we can not control the height of our chairs, and there aren't any armrests. While working at a computer you should be sitting all the way back, eyes should level to the top of the computer monitor, the home row of the key board she be at the same level as your elbows.

Picture from Ergonomic Pictures & Posture Photo