The colour cyan - between green and blue - is a hidden factor in encouraging or preventing sleep, according to biologists. University of Manchester researchers say higher levels of cyan keep ...

University of Manchester researchers say higher levels of cyan keep people awake, while reducing cyan is associated with helping sleep. The impact was felt even if colour changes were not visible ...

Adding or removing the colour cyan can have an impact on sleep, according to biologists. Let us know you agree to data collection on AMP. We and our partners use technologies, ...