Light hygiene after dark

If you are going all out with protecting your circadian rhythm, this is what optimal light hygiene looks like when you are using a computer at night: minimal lighting, low brightness, no blue, and little to no green wavelength.

To take this photo, I needed to increase the screen’s colour temperature and brightness; otherwise, it would have been too dark.

Only wavelengths above, say 550 nanometers, are entering my skin and my eyes. As light, through the eyes, is the main zeitgeber for your master clock in the brain, I always wear blue blockers after dark. They are the best layer of protection against blue and green wavelengths from artificial light at night.

I have IRIS is installed on the computer, red book light to illuminate the keyboard, blue blockers on and a salt lamp in the background. It might look excessive or crazy to some people, but hey, at least it is appropriate to where and WHEN I am in the day and night cycle.

This is not a trivial matter, as it might appear to most people. The problem is that anything outside our frame of reference gets mostly dismissed, as it challenges our view of the world. Without openness and curiosity nothing can enter and inform us. One way around this is to experience something directly and see how you feel in your body. For example, seeing the sunrise in the morning for a week or wearing blue blockers after dark for a week. How does this experiment effect you? You will know directly whether or not it serves you. But still, we might resist and convince ourselves that it is too inconvenient, too different. That is okay too. Everyone needs to make their own choices, but what is species-appropriate and what is not should be obvious. And choices always have consequences. The more you remove a species from its natural environment (or alter it drastically), the more disease, disconnection, and degeneration will follow.

If you want to understand how this all works, it will take a bit of reading and understanding. Light is complex, but light hygiene does not have to be. Find carefully curated content on all things light, circadian rhythms and natural living in the learn section of our app “Circadian”.

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