Home » Health » Natural light is ideal for a healthy circadian rhythm, but circadian lighting solutions can mimic the benefits of sunlight. Adding layers of lighting can enhance your space.

Natural light is ideal for a healthy circadian rhythm, but circadian lighting solutions can mimic the benefits of sunlight. Adding layers of lighting can enhance your space.

As humans, we are designed to function on a 24-hour cycle known as our circadian rhythm. This internal clock controls not only our sleep and wake cycles but also our metabolism, hormone production, and immune system. Over the past few decades, researchers have discovered that exposure to artificial light can disrupt this natural cycle and have a negative impact on our health. However, by tuning our home lighting into our circadian rhythm, we can improve our overall well-being and achieve a better quality of life. In this article, we will explore the importance of circadian lighting and how to create a conducive lighting environment in your home.


Getting the right lighting is key to promoting a healthy circadian rhythm, and natural light is the best option. According to Mr. Jones, natural light enhances mood, increases alertness and regulates the circadian rhythm. When building a house, factors such as orientation and placement of windows and doors are carefully considered to maximize natural light throughout the day. Large windows, skylights and glass pocket doors are good for bringing in abundant natural light, reducing the need for artificial lighting and promoting a connection to the environment. By seeing the sun throughout the day, people can adapt their natural rhythm accordingly.

While living in a glass house is not feasible for most people, there are lighting solutions that mimic the natural sleep-wake cycle. Circadian lighting refers to bulbs or lamps specifically designed to mimic the sun, producing the same biological response as natural light. There are various products available for circadian health, such as LED bulbs of different colors, sunrise alarm clocks that gradually increase brightness, light therapy boxes that enhance mood and energy, and Bios SkyBlue bulbs that adjust automatically throughout the course of the day. Bios also offers the Skyview Lamp, which helps regulate the body’s internal clock throughout the day by providing a color gradient that replicates the light of the sun and sky.

It is important to note that there is a distinction between tunable or dynamic white lighting and true circadian lighting. Tunable or dynamic lighting means the color temperature can be changed dynamically, while circadian stimulus is a measure of the light’s impact on suppressing melatonin levels that affect our circadian rhythm and influence our wake-sleep cycle. Intensity of lighting is a crucial factor for the body’s natural clock, and therefore, it is recommended to go outside in the morning and get bright sunlight to set the body’s clock. In the evening it is advisable to have dim lights in the home and bedroom to promote sleep.

Adding layers of lighting can also enhance a space. Indirect lighting options such as a torchiere or sconces are ideal for daytime; they mimic northern light which is ambient and consistent, and more neutral than direct or southern light. Harsh shadows are fatiguing, try to avoid spotlights and intensely focused light unless it’s for artwork or specific tasks.

When considering where to install lights, remember that it depends on where one spends the most time throughout the day. If working from home, a circadian desk lamp is recommended for more exposure to circadian light. Dynamic white lighting is preferred by Ms. Jensen, as it can be tuned to be cooler in the morning and move towards warmer white in the evening. With these tips in mind, it is possible to create a well-lit living space that enhances the natural circadian rhythm.


In conclusion, tuning your home lighting into your circadian rhythm can have a profound impact on your health, mood, and overall well-being. By choosing the right type of bulbs, adjusting the intensity and color temperature, and using smart lighting solutions, you can create a customized lighting scheme that supports your body’s natural cycles and helps you feel energized in the morning, alert during the day, and relaxed at night. Whether you’re looking to improve your sleep quality, boost your productivity, or simply create a more hospitable and comfortable living environment, taking the time to optimize your home lighting is a small investment that can yield big dividends. So why not give it a try and see how it can transform your life?

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