relax in office work - man at working station

arm back being benefit blinds break business busy casual caucasian chair collar comfort comfortable computer concntration corporate design desk desktop distance employee environment ergonomic exhausted eyeglasses foam furniture habit head health healthy indoor industrial internet job lie lifestyle man mobile monitor neck netbook notebook office performance position posture productivity profession professional proper reading real relax relaxed resting safety screen seated sit sitting space specialist system table tension therapeutic tired watching well wheels white work worker working workstation young