What is Circadian Lighting

Horace He

Last Updated: September 18, 2023

What is Circadian Lighting

Circadian lighting is a strategic approach to lighting design that takes into consideration the natural sleep/wake cycles of the human body. It is based on the understanding that light can influence our body’s internal clock, known as the circadian rhythm, which regulates various physiological and behavioral processes, including our sleep-wake cycle.

The concept of circadian lighting involves the use of lighting systems that are designed to mimic the natural variations in light that occur throughout the day. This includes adjusting the intensity and color temperature of the light fixtures to align with the different times of day. For example, in the morning, the lighting may be brighter and cooler in color temperature to promote alertness and productivity. In the evening, the lighting may be dimmer and warmer in color temperature to facilitate relaxation and sleep.

The goal of circadian lighting is to minimize the negative effects of artificial electric light on our circadian rhythm and support our overall health and well-being. Research has shown that exposure to appropriate levels and timing of circadian lighting can have positive effects on our sleep patterns, mood, cognitive performance, and overall health.

Circadian lighting is a relatively new concept in the lighting industry, and research on its effects and potential benefits is still ongoing. However, it holds promise for creating lighting environments that better align with our natural biological rhythms and promote optimal health and productivity.

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