A guy just came and installed full spectrum bulbs in my office overhead lights. It is so much nicer! I was supposed to have these all along but they didn't get moved last time I moved offices. I hadn't noticed until it started being so dark out lately. Then I was getting headaches and felt like my monitor refresh rate was too low even though my display is an LCD (they don't have refresh rates). So I figured out that the lighting was wrong and now they fixed it. Yea!