when setting up a sauna, I think you should remember some important details like; Light therapy may trigger mania in some people with bipolar disorder, so get advice from your doctor before starting light therapy. Some people claim that tanning beds help ease seasonal affective disorder symptoms. But this hasn’t been proved to work. The UV light released by tanning beds can damage your skin and greatly increase your risk of skin cancer. When side effects do occur, they may go away on their own within a few days of starting light therapy. You also may be able to manage side effects by reducing treatment time, moving farther from your light box, taking breaks during long sessions or changing the time of day you use light therapy.