zlacker

>>ivank+(OP)
I live in Norway, and used to have a big problem with SAD and longer-than-24-hour-cycles. I tried a few of the commercial lamps like he did, and my experience was similar. They helped some, but not enough.

My current solution is to take a 1 hour walk outside every day around noon. Also, I've stopped sitting in front of my computer or TV 3 hours within bedtime. Instead I usually spend my late evenings reading paper books.

This has solved the longer-than-24-hour-cycles and most of the SAD (it also seems to have completely cleared up my acne). However, on days when it's overcast and kinda dark, I still notice some SAD. On those dark days, the kind of lamp that he built probably would have been nice.

>>jensen+Ib1
Interesting, in Canada we're told that the angle made by the sun in winter in places at "high" latitudes (> 50) prevents us from getting the right kind of light/UV in the winter, and to compensate by taking daily supplements of vitamin D.