Circadian rhythm: re-syncing with SAD lamps
Kristina Da Silva E Silva, 423rd Medical Squadron occupational therapist, stares into her Seasonal affective disorder lamp at her office on RAF Alconbury, England, Jan. 16, 2015. The SAD lamp is a light therapy device which simulates the intake of Vitamin D the human body typically gets from natural sunlight. (U.S. Air Force photo by Staff Sgt. Jarad A. Denton/Released)
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Staff Sgt. Jarad A. DentonReleased
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