It has long been understood that both daylight and manufactured light have a significant influence on our circadian rhythms, which are essential to sleep, mood, and cognitive function. However, new research is indicating how manipulating certain wavelengths of electric light can be used to treat circadian disorders. Research is also indicating the different benefits of various types of light, the best times of the day for various lights, and the ideal exposure of light. Scientists at the University of Illinois found that daylight exposure in office settings increased worker productivity and physical activity. Alternatively, too much light at night, perhaps from television screens, tends to disrupt circadian rhythms and has been linked to increased mood disorders, obesity, and even certain cancers. A wonderful recent article from the American Psychological Association goes in to depth about the growing field of research surrounding light and its affect on our mental and physical health. This article discusses relevant new research, light and the aging body, adolescents and sleep, and more. To read the full article click here.
