article_snippet.sent: LIGHTING THE PATH TO REST .
article_snippet.sent: our have evolved to respond to ambient light.
article_snippet.sent: Warm hued rays from the setting sun signal that it's time to sleep, while blue daylight releases hormones to make us alert.
article_snippet.sent: Now that us live much of us under artificial light, us must mirror these natural light spectrums to keep us circadian rhythms in harmony.