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According to a University of Arizona (UArizona) study, exposure to blue light in the morning could re-entrain the circadian rhythm and improve sleep problems, leading to faster recovery from brain injury. Research has shown that the brain repairs itself during sleep. The UArizona team sought to determine whether improved sleep could lead to a faster recovery from mild traumatic brain injury (mTBI).
Research technician Cami Barnes tests a blue light device. Courtesy of William “Scott” Killgore.
In a randomized clinical trial, adults with mTBI used a cube-like device that shined blue light with a peak wavelength of 469 nm at them from a desk or table for 30 minutes early each morning for six weeks. Control groups were…