For the September 2018 issue of ELECTRICAL CONTRACTOR, I contributed a feature article about various research that is slowly building a case for circadian lighting, and may inform best practices.
The LRC found that participants receiving a morning CS of 0.3+ demonstrated greater circadian entrainment than those with a morning CS of 0.15 or lower. They were able to fall asleep faster at bedtime, particularly in winter; experienced higher-quality sleep; and reported lower stress levels.
Check it out here.
