How can lighting design support your circadian rhythm? Our bodies operate on a 24 hour clock, shifting between periods of wakefulness and sleep set by an alerting signal which responds to our daily light intake. At first, only Earth’s rotation determined our light exposure. Then the discovery of fire sparked centuries of lighting innovation leading to the present where we have continuous access to lighting of varying intensity and color. But getting the wrong light at the wrong time can cause significant shifts to our internal clocks, or circadian rhythms.
At the Canada Green Building Council’s Building Lasting Change 2016, Ed Clark and Marty Brennan discussed circadian design techniques and ZGF’s new open-source lighting design tool that supports greater health, well being, and healing.