I've used light therapy for the past two years now. The first year I just used it seasonally, from Fall through the beginning of summer. I noticed that when I am diligent about doing it everyday, at roughly the same time each morning, I do feel better. This past year I have used it year-round. I think it helps me with my sleep/wake cycle regardless of the season.

I have two different units. One is a full-spectrum 10K lux floor lamp that is by my bedside. I used to use that first thing in the a.m., and I've had no problems with it. It has a dimmer switch and a flexible neck so you can control the light intensity (not precisely) and position.

More recently, I've been using the Apollo Go-lite, which is blue spectrum light. That unit is quite small and portable, and I tend to use that when I travel or if I want to do my therapy while out of bed. I have not noticed a big difference in the effects of the two on my mood and energy level.

If I sit too close or the light intensity is too much for whatever reason, I can get a headache from it. I've also wondered if irritability this year might be a combo of light therapy intensity and my current medications. I'm aware of someone else who experienced an increase in irritability from light therapy, so I've backed down the intensity from 100 percent (on the Go-lite) to 80 percent, and that seems to help. Alternatively, I could decrease the time or increase the distance between the unit and my face.

Good luck if you decide to give it a try. It's non-invasive, and potential adverse effects are minimal compared to some medications. Units can be expensive, but most don't need the really expensive models. If you have insurance, you might investigate whether they would cover all or part of it. Mine didn't despite the letter from my pdoc, but I know of some who would cover it. I've got a list somewhere of internet sellers of units that I can send to you if I can put my hands on it and you are interested.

gg