I recently purchased a cheap ($25) dawn simulator - simple little device that progressively increases the intensity of any lamp in about 30 minutes. As a result your brain perceives this as sunrise and you don't get that nasty jolt of lighting when you first turn on the lights in the morning. I get up around 5:30 to go to gym and I have to admit that this little toy has made a huge difference in how I feel during long and dark winter months.
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