How are your eyes?
gtani: For the sake of your other body parts: lower back, neck, wriststake breaks and do little exerciseshttp://www.slifelabs.com/http://www.floydprice.com/2008/08/productivity-tip/http://bc.tech.coop/blog/060131.htmlhttp://www.workrave.org/http://www.lcdf.org/~eddietwo/xwrits/http://cameronyule.com/2008/11/taking-regular-breaks