A recent study published in the journal Sleep has suggested that blue light exposure could improve mental alertness and performance.
Researchers at Brigham’s Women Hospital have developed specialized light equipment with short wavelength (blue light). The effects of blue light were compared with the effects of green light. The researchers have observed that exposure to blue light during the daytime may increase the alertness and mental performance. The study involved 16 participants who were exposed to both lights over 6.5 days, every day. The mental alertness rate, reaction time and brain activity patterns were assessed.
When compared to green light exposed participants, quicker reaction time, fewer attention lapses, fatigue, increased alertness and optimal brain activity patterns were observed in the blue light exposed individuals.
Natural light is ideal for human health; however, controlled lighting settings including schools and work place may affect the daylight access and natural exposure to sunlight.
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