Former T's office was always lit by lamps, like living room level light. Current T has no lamps, large windows with blinds, and overhead fluorescent light. The second time I saw her, I asked if she'd mind if I turned off the overhead light and opened the blinds a bit. I felt like I was being interrogated by the Spanish Inquisition with that lighting! It gets a little tricky on late afternoon mid-winter days, but I still won't turn on the light. I have read that some people (and I think I'm one of them because I've had the same experiences in offices with fluorescent lights) are particularly sensitive to it and that it alters brain waves in a way that can leave some people feeling ill and anxious.