Poor lighting linked to headaches and low productivity, says Canadian study

June 11, 2003—A new study by the Canadian Center for Occupational Health and Safety (CCOSH) CCOSH Health and Safety Report, March 2003 (online)] shows that poor lighting not only makes a person sleepy, it can cause neck and shoulder pain, headaches, eye fatigue, and poor productivity, according to a report in Ergonomics Today. In order to reduce problems caused by poor workplace lighting (including glare, lights that are too bright or too dim, or improperly placed lights), CCOSH recommends using filters to diffuse overhead lighting; covering windows with adjustable blinds; and painting walls, floors, and furniture with a matte finish.