Exposure to blue – short wavelength – light during the day improves alertness and performance, according to a recent study in the journal Sleep.
The study was led by sleep researchers at Harvard University-affiliated Brigham and Women’s Hospital joined by Jefferson professor of neurology George C. Brainard, PhD. Dr. Brainard is director of Jefferson’s Light Research Program, and he developed the specialized light equipment used in the study.
The results of the study were featured in a number of news articles including one in the Business Standard:
“These results contribute to our understanding of how light impacts the brain and open up a new range of possibilities for using light to improve human alertness, productivity and safety,” said Harvard’s Steven Lockley, senior investigator of the study.
“While helping to improve alertness in night workers has obvious safety benefits, day shift workers may also benefit from better quality lighting that would not only help them see better but also make them more alert.”