Use a light therapy box A treatment specific to SAD is phototherapy, or light therapy, which involves exposure to a special light that mimics natural light and triggers chemicals in your brain to help regulate your mood, Henderson says. While these devices can be particularly helpful for those with winter SAD, she notes the importance of working with a doctor to ensure that you're purchasing the correct type of light, that you're utilizing it safely and effectively and that you're experiencing the type of depression that will actually respond positively to this type of intervention. "Studies suggest that light therapy is most effective when administered early in the day, and can even disrupt sleep if you are exposed to it too late in the day," she adds.
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