Circadian Lighting Solutions Are Real and Important—Why Aren’t They Being Used?

By  Edward ClarkNatalia Lesniak

Light is the primary stimulus that synchronizes our body clock with the solar day. Our bodies evolved at a time scale much slower than the rate at which we alter our environment. American spend 95 percent of our time in indoor environments that are novel in comparison to our evolutionary past. At night we are bombarded by light from personal devices, televisions, street lamps, signage, and more. Consequently, we receive too little light during daytime hours and too much light at night. This is exacerbated in northern latitudes where the days are shorter and daylight less intense. Add cloudy or overcast climates, and the daylight resource found in buildings is woefully inadequate at supporting our body clocks. Read More…