However, studies assessing effects of such light during. Exposure to light, in particular short wavelength light, can improve alertness and neurobehavioural performance. As a result, the present study was an attempt to investigate whether blue.
Exposure to bright versus dim light at night increases alertness and cognition and decreases sleepiness, whereas exposure to bright light during the daytime has shown mixed. This rct how timing and spectrum of light on shift versus before daytime sleep showed sleep & alertness for night‑shift workers and night owls. Previous research has indicated that blue light is a critical cue for entraining circadian rhythm.
Together with other trials, it frames light as a.