How to Improve Sleep By Understanding The Dark Side of Blue Light

It isn’t that blue light is bad, but how you use it may not be serving you as well as it could.

Vic Womersley
6 min readOct 7, 2022

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Light; we couldn’t do all that we enjoy without it. The evolution of the lights in our homes and communities has come a long way in the past 40 years. These changes have brought many benefits to communities around the world. But there is also a darker side to the evolution of our lights.

Photo by Tyler van der Hoeven on Unsplash

While cheaper and brighter lights make it easier for people to prolong their day, that extension can create ripples of disruption elsewhere. The glory of the night sky is hidden by the brightness of our well-lit streets. Those same streets can change the habits of the animals that share our planet. And when we extend our days, we can harm our natural rhythms.

The invention of bright white light

Today, Light Emitting Diode (LED) technology generates most of the lumens in our lives. Aside from the sun, of course. This relatively new technology has only been available to the masses since 1962. Even then, most lighting used was produced with the tried and true method of warm incandescent bulbs.

That’s because the LEDs from the 60s weren’t able to produce pure white light…

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Vic Womersley

I’m a freelance writer using Medium to explore ideas that interest me. I hope they interest you too. Get in touch here: vicwomersley@gmail.com