National Lighting Bureau, 2017 Lighting Forum Video.
https://nlb.org/designing-with-tunable-white-light/

"One of the most important applications for tunable white light will occur in health-care facilities, especially for patients dealing with dementia and Alzheimer’s Disease. By using light as a stimulant during morning hours, patients will nap less during the day, enabling them to sleep better at night. Using light in this way can also reduce the patients’ agitation. In commercial applications, tunable white light can be used to affect the colors of surfaces in a space. This gives building owners the ability to provide lighting that is highly compatible with a given tenant’s interior design, and to adjust the lighting to make it ideally suited for the next tenant’s interior design, avoiding the need to replace the existing system for each new tenant."